Merge pull request #3 from stefanschneider/master

Disable SystemVirtualAddressSpaceQuotas for now
Remove prison access to whole Software registry to improve performance

Change-Id: Iadd7a7edd55ce58e1303d4ed9da9c36db49ba25e
Merge pull request #4 from florindragos/master

Remove prison access to whole Software registry to improve performance
MSSQL allowance no longer adds prison user to MSSQL group.
Add changes for mssql 2012
Remove mssql rule type and replace it with a helper function
Merge pull request #5 from adasescu/master

Add Mssql 2012 Cartridge
Add the ability to Prison library from any session