changed cobertura version to 2.6 (to support Java 7 syntax)
changed cobertura version to 2.6 (to support Java 7 syntax)

Change-Id: Id301a8d96a1ca73cbb281e484502a5dce506b5b1
Signed-off-by: Alexander Wert <4c3cda5567430929689625481824a4bb9682e252@sap.com>

sopeco/LPE-Common,sopeco/LPE-Common