Update index.html

Translated the alternative image text to pt_BR.
From "A screenshot showing CSS Quick Edit" to the equivalent "Uma screenshot mostrando o editor rápido de CSS"
inital pass at compiling less files
minify javascript
cleanup copy task
add grunt-targethtml to conditionally use brackets less/css based on dev/dist build.
Adding condition for skipping symlinks when installing extensions via the extension manager

When installing extensions that have symlinks via the extension
manager, they will fail with a message regarding an invalid zip file.
This can be tested with
https://github.com/MiguelCastillo/Brackets-SymbolicLinks
Merge branch 'master' into jasonsanjose/yeoman

Conflicts:
	src/index.html
	src/main.js
	src/utils/ExtensionLoader.js
Missed a merge conflict in ExtensionLoader
add sourcemaps for requirejs
restore default task. new build task for compiling, concat, etc.
Merge remote-tracking branch 'origin/master' into jasonsanjose/yeoman
Add source maps for LESS. Requires a CEF upgrade to Chrome 30+.
when docviewer has scrollbars, don't let keyboard scrolling events propagate
sprint 34 - czech language

updated
fix comments
handle scrolling for any element in viewer
close dropdown on inline editor close or editor resize
Update Tern and Acorn to the latest.

This fixes #6018 and possibly others.
change build.prop to (1) work when on a detached head during jenkins build (2) use bash compatible property key names and (3) include shell git info
Update strings.js