Add new cask for Pentaho Data Integration
Symlink diffmerge command line binary to /usr/local/bin
Add Devonthink Pro Office v2.7.4
Remove YANVI

The download for this *cask* is from mediafire. Similar to the case with
[FreeRapid](https://github.com/phinze/homebrew-cask/pull/615), having
the download source be a one click hoster means the download url expires
and is unreliable.

Will leave this open for a few days, in case someone has an alternative.
Fix CLI tool installation in GitHub for Mac

Symlinks the 'github' CLI binary that enables opening GitHub for Mac
from the command line. As per the defaults for the application, the
internal `github_cli` binary is symlinked simply as `github`.

Note this intetionally does *not* also symlink the bundled versions.
of `git` itself, as anyone using brewcask is going to want to be able
to manage those normally via homebrew.`
Upgrade Google App Engine Launcher to 1.9.3
Updated Vuescan version and checksums
Flash 13.0.0.201
Merge pull request #3910 from ahbeng/flash-13.0.0.201

Flash 13.0.0.201
Merge pull request #3908 from denysbutenko/googleappenginelauncher

Upgrade Google App Engine Launcher to 1.9.3
Merge pull request #3909 from gsong/gsong/vuescan

Updated Vuescan version and checksums
SHA256 added to Bitmessage

Added sha256.

Call me crazy, but I think the integrity of a secure messaging app should be verified.
Add Geppetto.app v4.1.0
Android Studio 0.5.5
Merge pull request #3912 from benwebber/geppetto

Add Geppetto.app v4.1.0
Merge pull request #3913 from selesse/android-studio

Android Studio 0.5.5
updated feeder
updated ibackup
Merge pull request #3914 from vitorgalvao/update-feeder

updated feeder
Merge pull request #3915 from vitorgalvao/update-ibackup

updated ibackup