Released Jersey 2.1 incubator content.

- Updated E2E test project versions to 2.2-SNAPSHOT.
- Added incubator to default build, removed profile to avoid future release issues.

Change-Id: I9d0acef9c7ad1afd299b78ca3e41b225156dddf3
Signed-off-by: Marek Potociar <marek.potociar@oracle.com>
Prepare incubator for next development interation.

Change-Id: I72c46811f46fce02f4781ce02cc16b186ae0223d
Signed-off-by: Marek Potociar <marek.potociar@oracle.com>