problems in startup and using gcli

Invoked on a snow leopard box, with a 10.6.x build of node webkit, and with latest github ambiance..the first two errors were on startup, the next on open ~/apyfile.py on the gcli

$ ./node-webkit.app/Contents/MacOS/node-webkit ambiance
[20784:0214/001903:ERROR:renderer_main.cc(179)] Running without renderer sandbox
[20783:0214/001903:INFO:CONSOLE(1)] "Uncaught TypeError: Illegal invocation", source: /Users/rahul/Downloads/Ambiance/ambiance/node_modules/gcli-ambiance-plugin/resource/gcli.js (1)
[20783:0214/001938:INFO:CONSOLE(1)] "Uncaught TypeError: Cannot call method 'selectChoice' of undefined", source: /Users/rahul/Downloads/Ambiance/ambiance/node_modules/gcli-ambiance-plugin/resource/gcli.js (1)
[20783:0214/002112:INFO:CONSOLE(1)] "Uncaught TypeError: Cannot call method 'selectChoice' of undefined", source: /Users/rahul/Downloads/Ambiance/ambiance/node_modules/gcli-ambiance-plugin/resource/gcli.js (1)
[20783:0214/002227:INFO:CONSOLE(1)] "Uncaught TypeError: Cannot call method 'selectChoice' of undefined", source: /Users/rahul/Downloads/Ambiance/ambiance/node_modules/gcli-ambiance-plugin/resource/gcli.js (1)
[20783:0214/002538:INFO:CONSOLE(1)] "Uncaught TypeError: Cannot call method 'selectChoice' of undefined", source: /Users/rahul/Downloads/Ambiance/ambiance/node_modules/gcli-ambiance-plugin/resource/gcli.js (1)

Reproduce the reported startup command, ./node-webkit.app/Contents/MacOS/node-webkit ambiance, on the stated Snow Leopard and Node-WebKit setup, then inspect node_modules/gcli-ambiance-plugin/resource/gcli.js. Exercise the gcli by opening ~/apyfile.py and use the reported console errors as the baseline. Done means Ambiance starts and the file can be opened without these errors.

Written by the indexing model from the issue text.