2016-03-21, Version v4.4.1 'Argon' (LTS)

This LTS release comes with 113 commits, 56 of which are doc related,
18 of which are build / tooling related, 16 of which are test related
and 7 which are benchmark related.

Notable Changes:

* build:
  - Updated Logos for the OSX + Windows installers
    - (Rod Vagg) #5401
    - (Robert Jefe Lindstaedt) #5531
  - New option to select you VS Version in the Windows installer
    - (julien.waechter) #4645
  - Support Visual C++ Build Tools 2015
    - (João Reis) #5627
* tools:
  - Gyp now works on OSX without XCode
    - (Shigeki Ohtsu) #1325