Update spectacle download URL
Merge pull request #241 from jroes/update-spectacle-download-url

Update spectacle download URL
add BitTorrent Sync

a.k.a BTSync
bumped to version 0.8.2
Upgrade vagrant to 1.2.2
Update README.md with new location of caskroom.
Merge pull request #242 from pgr0ss/upgrade_vagrant

Upgrade vagrant to 1.2.2
Merge pull request #243 from pgr0ss/update_readme_caskroom

Update README.md with new location of caskroom.
fix sha for adobe-air
allow linkables to be set to none

sometimes it doesn't make sense for a cask to link anything out to the
Applications dir
support for caveats

i.e. custom messages printed after installing a cask

refs #218
add p4merge caveats as recommended in #217
exclude __MACOSX dir when unzipping

should take care of #222
pull in CONTRIBUTING.md from the wiki

this will cause it to show up as a link from incoming pull requests, and
also make the documentation and its change history a little more
first-class with respect to the rest of the project.

big ups to @mkouhia, @passcod, @mwarkentin, and @vincecima for their
work on this document!
change evernote to no_checksum

this makes sense since the download link is not version-specific

also specify app to link

refs #209
bump version to v0.10.0
forgot to update evernote version to latest
programmatically modify alfred scope

refs #18
split docs into README, USAGE, FAQ

moving towards more complete, centralized, maintainable documentation
docs on working with the ruby codebase

refs #234