Add ping() to test connections
Merge tag 'v2.5.2'

2.5.2
Emit deleted event on delete for embedsMany relations

Signed-off-by: Jaka Hudoklin <jakahudoklin@gmail.com>
Merge pull request #239 from strongloop/feature/add-ping

Add ping() to test connections
Merge pull request #250 from offlinehacker/embedsMany_deleted

Emit deleted event on delete for embedsMany relations
Bump version
Merge branch 'release/2.6.0' into production