initial port of download_deps.sh
add node download tasks
fix windows cef and node setup tasks
port make_appshell_project.sh
fix chmod on mac
add win and mac specific symlinks
fix whitespace, add comments
delete unused file
continue work on build.sh port
use grunt-contrib-copy for staging www files
refactor copying www files
mac installer build
fix mac packaging
fix writing SHA and branch to config.json
renamed update-repo task to git. fix version string.
separate installer from full-build. remove windows stageForInstaller.bat
code review comments
remove unused var
Merge branch 'jasonsanjose/jenkins' into jasonsanjose/jenkins2

Conflicts:
	tasks/setup.js
move downloaded files to downloads/