add new apex extensions
hook up keyring setting
handle 31.0 compile response
force branch checkout to override current master, closes #446, closes #417
Merge pull request #447 from ralphcallaway/fix_installer_issue

force branch checkout to override current master,
send delete result to compile handler as it's essentially a deployment ("compile") of destructivechanges.xml
prep for package control
change mm_debug_mode to mm_developer_mode, add mm installer
lots of mm installer ux improvements
use mm_path instead of mm_location to avoid setting collision, clean up settings, clean up project in general in prep for release
ignore mm
adds linux-specific logic for mm installation
resolves issue where open project was not working in linux
ensures user settings are migrated
default value for subl_location is no longer local
ensures linux users use wget or curl where appropriate
resolves issue where mm_interface was not respecting developer mode
removes unavailable command resolves joeferraro/mm#47
enhancing download/install process for mm, updates readme install/update instructions
tell user to restart ST