[TIMOB-12439] Removed the deprecated Uglify 1 AST walker since we've upgraded to Uglify 2.
Merge branch 'master' into timob-12439

Conflicts:
	CHANGELOG.md
[TIMOB-12439] Added the astwalker back because it's used by the i18n tool, but it's still removed from the app.js.
Merge pull request #26 from appcelerator/timob-12439

[TIMOB-12439] Removed the deprecated Uglify 1 AST walker since we've upg...