Support CustomData

As of the latest fabric update a new element called "CustomData" can be
defined for the Windows/Linux Provisioning Configuration data:
http://msdn.microsoft.com/en-us/library/windowsazure/jj157194.aspx

This patch adds a new parameter called "--custom-data" that points to a
file.  The contents of the file will be base64 encoded and added to the
Windows/Linux Provisioning Configuration data.
Support CustomData for both Linux and Windows
Coding style: fix indentation
Merge branch 'dev' into CustomData

* dev:
  update readme for mobile services scale changes
  add column support, update tests
  Add contributors.txt and update copyrights
  add missing server delete recording
  Update ChangeLog.txt
  add confirmation prompt to scale due to term reuse
  Fix incorrect reference
  Update shrinkwrap for node 0.6
  Fix issue with missing body in request POST / PUT
  new tier modes
  new tier modes
  Update windows installer version
  Lock dependencies
  Add check for hostnames on site browse
  Update README.md
  Update README.md
  Add missing semicolon
  Update version and dependency
1082: showing website as well. Not just the slots
Fix swap command infered values
Using site parse
Add missing lien
Update recordings and removing slot option from swap
Revert update on site cert recording
Merge pull request #1084 from andrerod/dev

Multiple fixes
Fixing slot issue on create
Merge pull request #1088 from andrerod/dev

Fixing slot issue on create
Fix typo in slot
1089: Fix error message
Merge pull request #1091 from andrerod/dev

1089: Fix error message
Fix incorrect reference
Update version and changelog
Fix recording
update changelog year