Fix build step 'verify'
Fix build step 'verify'

The new version of the jacoco plug-in changed the syntax for specifying coverage
checks, so mvn would fail at the verify step. Updated the pom to use the new syntax.

petrushy/Orekit,petrushy/Orekit,CS-SI/Orekit,ProjectPersephone/Orekit,Yakushima/Orekit,attatrol/Orekit,treeform/orekit,CS-SI/Orekit,ProjectPersephone/Orekit,liscju/Orekit,liscju/Orekit,wardev/orekit,Yakushima/Orekit,attatrol/Orekit