Added Reflector Cask

This adds a cask to install Reflector by Airsquirrels.
Their download link always points to the latest version,
hence no hash as that would break when they update.
When first launching after installation the app will
request to be copied into /Applications rather than run
from ~/Applications.
Use HOMEBREW_REPOSITORY instead of HOMEBREW_PREFIX to derive tapspath
Added Scala IDE 3.0.2
Update node-webkit to version 0.8.0
Merge pull request #1765 from njam/issue-1765

Adjust tapspath to work with non-standard homebrew-home
cut v0.20.1
Merge pull request #1766 from bakotaco/scala-ide

Added Scala IDE 3.0.2
Merge pull request #1767 from rimenes/node-webkit

Update node-webkit to version 0.8.0
Update clementine to 1.2.0
Merge pull request #1772 from ptgreg/clementine1.2.0

Clementine 1.2.0
Renamed cask Reflectorapp to Reflector

Rightfully suggested by NanoXD that the application is called
Reflector and not Reflectorapp. Naming change to align with
naming conventions.
Merge pull request #1751 from henninghoyer/reflectorapp

Added Reflector Cask
Merge remote-tracking branch 'phinze/homebrew-cask/master'