"File downloads" and "E-mail links" plugins are broken

All other plugins do not generate any traceback.

When I select "File downloads" plugin, I get this traceback :
```
Traceback (most recent call last):
File "/Users/laurent/.buildout/eggs/plone.app.viewletmanager-2.0.6-py2.7.egg/plone/app/viewletmanager/manager.py", line 105, in render
html.append(viewlet.render())
File "/Users/laurent/.buildout/eggs/Zope2-2.13.22-py2.7.egg/Products/Five/browser/pagetemplatefile.py", line 125, in __call__
return self.im_func(im_self, *args, **kw)
File "/Users/laurent/.buildout/eggs/Zope2-2.13.22-py2.7.egg/Products/Five/browser/pagetemplatefile.py", line 59, in __call__
sourceAnnotations=getattr(debug_flags, 'sourceAnnotations', 0),
File "/Users/laurent/.buildout/eggs/zope.pagetemplate-3.6.3-py2.7.egg/zope/pagetemplate/pagetemplate.py", line 132, in pt_render
strictinsert=0, sourceAnnotations=sourceAnnotations
File "/Users/laurent/.buildout/eggs/zope.pagetemplate-3.6.3-py2.7.egg/zope/pagetemplate/pagetemplate.py", line 240, in __call__
interpreter()
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 271, in __call__
self.interpret(self.program)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 343, in interpret
handlers[opcode](self, args)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 852, in do_condition
self.interpret(block)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 343, in interpret
handlers[opcode](self, args)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 533, in do_optTag_tal
self.do_optTag(stuff)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 518, in do_optTag
return self.no_tag(start, program)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 513, in no_tag
self.interpret(program)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 343, in interpret
handlers[opcode](self, args)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 852, in do_condition
self.interpret(block)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 343, in interpret
handlers[opcode](self, args)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 533, in do_optTag_tal
self.do_optTag(stuff)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 518, in do_optTag
return self.no_tag(start, program)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 513, in no_tag
self.interpret(program)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 343, in interpret
handlers[opcode](self, args)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 533, in do_optTag_tal
self.do_optTag(stuff)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 518, in do_optTag
return self.no_tag(start, program)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 513, in no_tag
self.interpret(program)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 343, in interpret
handlers[opcode](self, args)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 742, in do_insertStructure_tal
structure = self.engine.evaluateStructure(expr)
File "/Users/laurent/.buildout/eggs/Zope2-2.13.22-py2.7.egg/Products/PageTemplates/Expressions.py", line 218, in evaluateStructure
text = super(ZopeContext, self).evaluateStructure(expr)
File "/Users/laurent/.buildout/eggs/zope.tales-3.5.3-py2.7.egg/zope/tales/tales.py", line 696, in evaluate
return expression(self)
File "/Users/laurent/.buildout/eggs/zope.tales-3.5.3-py2.7.egg/zope/tales/expressions.py", line 217, in __call__
return self._eval(econtext)
File "/Users/laurent/.buildout/eggs/Zope2-2.13.22-py2.7.egg/Products/PageTemplates/Expressions.py", line 155, in _eval
return render(ob, econtext.vars)
File "/Users/laurent/.buildout/eggs/Zope2-2.13.22-py2.7.egg/Products/PageTemplates/Expressions.py", line 117, in render
ob = ob()
File "/Users/laurent/.buildout/eggs/collective.googleanalytics-1.6.1-py2.7.egg/collective/googleanalytics/viewlets/tracking.py", line 63, in renderPlugins
results.append(plugin())
File "/Users/laurent/.buildout/eggs/zope.browserpage-3.12.2-py2.7.egg/zope/browserpage/viewpagetemplatefile.py", line 83, in __call__
return self.im_func(im_self, *args, **kw)
File "/Users/laurent/.buildout/eggs/zope.browserpage-3.12.2-py2.7.egg/zope/browserpage/viewpagetemplatefile.py", line 51, in __call__
sourceAnnotations=getattr(debug_flags, 'sourceAnnotations', 0),
File "/Users/laurent/.buildout/eggs/zope.pagetemplate-3.6.3-py2.7.egg/zope/pagetemplate/pagetemplate.py", line 126, in pt_render
raise PTRuntimeError(str(self._v_errors))
PTRuntimeError: ['Compilation failed', 'zope.tal.taldefs.TALError: $ must be doubled or followed by a simple path in expression u"string:\\n /**/\\n", at line 1, column 1']
```

When I select "E-mail links" plugin, I get this traceback :
```
Traceback (most recent call last):
File "/Users/laurent/.buildout/eggs/plone.app.viewletmanager-2.0.6-py2.7.egg/plone/app/viewletmanager/manager.py", line 105, in render
html.append(viewlet.render())
File "/Users/laurent/.buildout/eggs/Zope2-2.13.22-py2.7.egg/Products/Five/browser/pagetemplatefile.py", line 125, in __call__
return self.im_func(im_self, *args, **kw)
File "/Users/laurent/.buildout/eggs/Zope2-2.13.22-py2.7.egg/Products/Five/browser/pagetemplatefile.py", line 59, in __call__
sourceAnnotations=getattr(debug_flags, 'sourceAnnotations', 0),
File "/Users/laurent/.buildout/eggs/zope.pagetemplate-3.6.3-py2.7.egg/zope/pagetemplate/pagetemplate.py", line 132, in pt_render
strictinsert=0, sourceAnnotations=sourceAnnotations
File "/Users/laurent/.buildout/eggs/zope.pagetemplate-3.6.3-py2.7.egg/zope/pagetemplate/pagetemplate.py", line 240, in __call__
interpreter()
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 271, in __call__
self.interpret(self.program)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 343, in interpret
handlers[opcode](self, args)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 852, in do_condition
self.interpret(block)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 343, in interpret
handlers[opcode](self, args)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 533, in do_optTag_tal
self.do_optTag(stuff)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 518, in do_optTag
return self.no_tag(start, program)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 513, in no_tag
self.interpret(program)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 343, in interpret
handlers[opcode](self, args)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 852, in do_condition
self.interpret(block)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 343, in interpret
handlers[opcode](self, args)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 533, in do_optTag_tal
self.do_optTag(stuff)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 518, in do_optTag
return self.no_tag(start, program)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 513, in no_tag
self.interpret(program)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 343, in interpret
handlers[opcode](self, args)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 533, in do_optTag_tal
self.do_optTag(stuff)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 518, in do_optTag
return self.no_tag(start, program)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 513, in no_tag
self.interpret(program)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 343, in interpret
handlers[opcode](self, args)
File "/Users/laurent/.buildout/eggs/zope.tal-3.5.2-py2.7.egg/zope/tal/talinterpreter.py", line 742, in do_insertStructure_tal
structure = self.engine.evaluateStructure(expr)
File "/Users/laurent/.buildout/eggs/Zope2-2.13.22-py2.7.egg/Products/PageTemplates/Expressions.py", line 218, in evaluateStructure
text = super(ZopeContext, self).evaluateStructure(expr)
File "/Users/laurent/.buildout/eggs/zope.tales-3.5.3-py2.7.egg/zope/tales/tales.py", line 696, in evaluate
return expression(self)
File "/Users/laurent/.buildout/eggs/zope.tales-3.5.3-py2.7.egg/zope/tales/expressions.py", line 217, in __call__
return self._eval(econtext)
File "/Users/laurent/.buildout/eggs/Zope2-2.13.22-py2.7.egg/Products/PageTemplates/Expressions.py", line 155, in _eval
return render(ob, econtext.vars)
File "/Users/laurent/.buildout/eggs/Zope2-2.13.22-py2.7.egg/Products/PageTemplates/Expressions.py", line 117, in render
ob = ob()
File "/Users/laurent/.buildout/eggs/collective.googleanalytics-1.6.1-py2.7.egg/collective/googleanalytics/viewlets/tracking.py", line 63, in renderPlugins
results.append(plugin())
File "/Users/laurent/.buildout/eggs/zope.browserpage-3.12.2-py2.7.egg/zope/browserpage/viewpagetemplatefile.py", line 83, in __call__
return self.im_func(im_self, *args, **kw)
File "/Users/laurent/.buildout/eggs/zope.browserpage-3.12.2-py2.7.egg/zope/browserpage/viewpagetemplatefile.py", line 51, in __call__
sourceAnnotations=getattr(debug_flags, 'sourceAnnotations', 0),
File "/Users/laurent/.buildout/eggs/zope.pagetemplate-3.6.3-py2.7.egg/zope/pagetemplate/pagetemplate.py", line 126, in pt_render
raise PTRuntimeError(str(self._v_errors))
PTRuntimeError: ['Compilation failed', 'zope.tal.taldefs.TALError: $ must be doubled or followed by a simple path in expression u\'string:\\n /**/\\n\', at line 1, column 1']
```