bootstrap.bat fails on Windows

As per my [StackOverflow question](http://stackoverflow.com/q/18158523/363039), running bootstrap.bat on Windows 8 throws an error:

```
c:/Programming/couchapp/erica/src/erica.erl:none: redefining macro 'WITH_MOCHIJSON'
ERROR: compile failed while processing C:/Programming/couchapp/erica: rebar_abort
```

As per asvyazin's answer, it should really just be:

```
rebar get-deps
rebar compile
escript bootstrap
```

Start by inspecting bootstrap.bat and compare its behavior with the commands listed in the issue: rebar get-deps, rebar compile, and escript bootstrap. Reproduce the failure on Windows if possible; done means bootstrap.bat follows that sequence without the redefining macro or rebar_abort error.

Written by the indexing model from the issue text.