Adding 'Google Earth'.

Adds support for installing Google Earth via Cask.
Add cask for MongoHub (https://github.com/fotonauts/MongoHub-Mac)

Add cask for MongoHub (https://github.com/fotonauts/MongoHub-Mac)
Add cask for Robomongo (http://robomongo.org)

Add cask for Robomongo (http://robomongo.org)
Merge pull request #811 from bmcustodio/google-earth

Adding 'Google Earth'.
Add cask for MongoHub (https://github.com/fotonauts/MongoHub-Mac)

Add cask for MongoHub (https://github.com/fotonauts/MongoHub-Mac)
Merge pull request #813 from ragusource/mongohub

Add cask for MongoHub (https://github.com/fotonauts/MongoHub-Mac)
Update link option.

Update link option.
Add AeroFS cask
Merge pull request #815 from NanoXD/AeroFS

Add AeroFS cask
Merge pull request #814 from ragusource/robomongo

Add cask for Robomongo (http://robomongo.org)
Add latest Hex Fiend.
Merge pull request #817 from mrben/hexfiend

Add latest Hex Fiend.
Rename HexFiend.rb to hexfiend.rb
updated xld to 20130720
Merge pull request #818 from vitorgalvao/update-xld

updated xld to 20130720
add maratis 3.21
Merge pull request #819 from phinze/maratis

add maratis 3.21
Updated to Zotero 4.0.9
Merge pull request #820 from janrito/zotero

Update Zotero to 4.0.9
CuteSdr, the QT based SDR project from RF-Space.