fixed #8 added jcl-over-slf4j with version 1.6.3 to pom.xml
fixed #9

to helper-method added to LegacyCoreBackend:
 - getMetaclassForClasskey returns the metaclass for
   the given classkey (<Domain>.<TableName>)
 - getDomainForClasskey returns the domain for the
   given classkey
Both Methods are used in the Cores now.

In LegacyCoreBackend.createCidsClass(), the
constructors of CidsClass and CidsAttributes gets
the correct classKey now.
Merge branch 'bug/8-jcl-over-slf4j-version' into dev
Merge branch 'bug/9-wrong-classKey' into dev
issue #10

ClassCacheMultiple.setInstance is needed, thats why the
cids-navigator dependency is added.

implementation of getAllObjects. works with limit and offset.
if level is set to 0, the references are build by using
LightWeightMetaObjects. Otherwise, there could be some
HeapSpaceException when requesting many complex MetaObjects.
issue #10

missing changes from last commit
minor jalopy changes
Merge branch 'feature/10-legacyentitycore-getAllObjects' into dev