Accessing a string as an array doesn't work in IE7

See: http://stackoverflow.com/questions/5943726/string-charatx-or-stringx
move to python2.7
Merge branch 'master' of github.com:bnmnetp/skulpt

Conflicts:
	doc/app.yaml
Cosmetic change to comply with Sublime Text's notion of how it should beautify every bit of javascript it runs across.
first version of simple DOM integration, along with an example of use.
Update calling_from_js.html

without .v call the value is not displayed, only the object
Merge branch 'master' of github.com:bnmnetp/skulpt
Merge pull request #66 from dmaciejak/patch-1

Update calling_from_js.html
Fixes #67  regression in setting turtle colors.
Merge branch 'master' of github.com:bnmnetp/skulpt
Merge pull request #64 from albertjan/patch-2

Accessing a string as an array doesn't work in IE7
Merge branch 'master' of https://github.com/bnmnetp/skulpt
Fix regression when cleaning up animation for multiple turtles.
Merge branch 'master' of github.com:bnmnetp/skulpt

Conflicts:
	dist/builtin.js
New build of merged pull requests
Merge branch 'master' of https://github.com/bnmnetp/skulpt
Shim for requestAnimationFrame