add a return value also to saveViolation
use return value in saveUniqueViolation
Merge pull request #168 from guwirth/enhancement/CxxReportSensor

saveViolation return value
improve CxxColorizer (copy of C# solution)
Merge pull request #172 from guwirth/enhancement/CodeColorizerFormat

CodeColorizerFormat
Merge remote-tracking branch 'upstream/master'