Fixed minimum doctrine common version to 2.2.0-dev

Removed some unused uses
Fixed minimum doctrine common version to 2.2.0-dev

Removed some unused uses
Merge branch 'master' into 2.1
Merge branch 'master' into 2.3
Merge branch 'master' into 2.1
Merge branch 'master' into 2.3
Merge branch 'master' into 2.3
Merge branch 'master' into 2.1
Merge branch 'master' into 2.1
Merge branch 'master' into 2.3
Merge branch 'master' into 2.1
Merge branch 'master' into 2.3
Merge branch 'master' into 2.1
Merge branch 'master' into 2.3
Merge branch 'master' into 2.1
Merge branch 'master' into 2.3
Merge branch 'master' into 2.1
Merge branch 'master' into 2.3
Merge branch '2.2'
Merge branch '2.3'