Fixed potential null reference exception.
Fixed typo in LockThisIssue
Simple auto-LINQ-Sum() action.
Improved auto-LINQ sum to support several new cases.
Renamed AutoLinqSum to AutoLinqSumAction. Added support for additional statements, notably conditionals.
AutoLinqSumAction now fuses the Sum expression with the statement before the loop if appropriate.
AutoLinqSumAction: Now properly handles increment/decrement and Count().
Merge pull request #193 from mono-soc-2013/luiscubal-lock-this

Fixed typo in LockThisIssue (compile error)
Disabled AutoLinqSumAction if Enumerable cannot be resolved as System.Linq.Enumerable
Merge pull request #195 from mono-soc-2013/luiscubal-autolinqsum

Auto-LINQ Sum()