NullValueAnalysis: Improve accuracy of GetVariableStateBefore/AfterStatement.
Reduce number of unnecessary node visits.
Added support for KeepCommentsAtFirstColumn.
Changed mono parameter alignment option according to the style.
Merge pull request #323 from mono-soc-2013/MateY-IndentEngine

Fixed issues with NamedAttributeArgument.
Merge pull request #324 from mono-soc-2013/luiscubal-null-analysis-member-reference-improvements

Improved accuracy of null analysis
Synced 'PossibleMultipleEnumerationIssue' / added resolve actions.
Added missing file.
Added GetAttributes method.
Fixed paste bug/ignored broken test.
Fixed cache indent engine bug (engine should be reseted on text change
from outside.)
Added 'ConditionIsAlwaysTrueOrFalseIssue'.
Fixed using declaration indentation bug.
Improved code issue message.
Fixed issue in UnreachableCodeIssue.
Fixed unit tests.
Used better approach to determine the global body state.