Added "most recent N builds" limiting option for coverage graph.
Merge pull request #13 from pokab/limitgraph

Added "most recent N builds" limiting option for coverage graph.
[FIXED JENKINS-18218] fixed columns order
added japanesel10n
added advanced button to config page
[maven-release-plugin] prepare release cobertura-1.9.1
[maven-release-plugin] prepare for next development iteration