Adding TexShop, the LaTeX editor for MacOsX

TexShop is a stable, simple and complete LaTeX (and friends) editor for
Mac OSX. It comes normally prebundled with mactex but also exists as an
independent package.
Use the Mountain Lion version of MacVim for non-Mavericks machines.
Anki 2.0.17
Dashlane 2.2.5.48458
4K Video Downloader 3.0
Google App Engine Launcher 1.8.7
Ne
Money 4.5.1
Hands Off! 2.1.0
My Phone Desktop 2.0.3
Opera Next 18.0.1284.26
Add caveats to synergy
adding the URL with the  version of TexShop
Add caveats to info like homebrew
Adding GPower 3 Cask

A handy tool for statistical power analysis.
Merge pull request #1530 from meduz/texshop

Adding TexShop, the LaTeX editor for MacOsX
Merge pull request #1536 from linc01n/synergy

Add caveats to synergy
Merge pull request #1538 from jglenes/gpower-3

Adding GPower 3 Cask
Airmail Beta 1.3.0 (214)

Change checksum to follow MD5 on download page
Add Knock.app cask