Initial fix for metrics with no data missing columns.
Changed new method name and updated portlet.jelly to use it.
JENKINS-22412 Update values in portlet to show N/A instead of 0 when no data is present.
JENKINS 22412 Added N/A to totals when no data is present.
JENKINS-22412 Added test for new getMetricsWithEmpty() method.
JENKINS-22412 Removed extra lines in coverage-no-data.xml .
Merge pull request #27 from Tamini/develop

[JENKINS-22412] : Portlet view has missing and wrongly aligned columns when a metric has no data.
[maven-release-plugin] prepare release cobertura-1.9.4
[maven-release-plugin] prepare for next development iteration
Added view column that shows the line coverage.
Make coverage column configurable.
Update of maven-release-plugin version.
[maven-release-plugin] prepare release cobertura-1.9.5
[maven-release-plugin] prepare for next development iteration
 [JENKINS-24436] Don't use AbstractItem.getUrl when creating job links.