[OPENENGSB-3631] added functionality to query for commits by their revision number
[OPENENGSB-3631] added revert functionality, added first two tests
[OPENENGSB-3631] added additional tests which show the current problem
[OPENENGSB-3631] implemented the commit revert functionality
[OPENENGSB-3631] reimplemented JPACommit behaviour in order to work finally full correctly
[OPENENGSB-3631] removed no longer needed oid list in the JPACommit entity
[OPENENGSB-3631] Added method to the EDB which allows the querying for commits with the help of the new class CommitQueryRequest, which defines the used conditionals for the query
[OPENENGSB-3631] added functionality to query for revisions to the QueryInterface
[OPENENGSB-3631] started implementing the method for loading an EKBCommit based on its revision number
[OPENENGSB-3631] implemented the loading of EKBCommit objects
[OPENENGSB-3631] added integration test for the loading functionality of EKBCommits
[OPENENGSB-3631] the jpa commit now also saves from which domain/connector/instance the commit has been performed
[OPENENGSB-3631] Added new class CommitMetaInfo from which a list is returned by the commit query method instead of only the revision string list
[OPENENGSB-3631] added comment field to the commit classes and the CommitMetaInfo class
Merge pull request #852 from Arcticwolf/OPENENGSB-3631

[OPENENGSB-3631] add revert functionality