updated deps
added "admins" field to group fetched by ID
changed some response codes 404 --> 400
fixed exception logging
added group admins management
added empty test for the new group admin listener
added .travis.yml
added tests for the group admins listener
fixed required php 5.3 version
extract: "name" --> "unique_name", "short_name" --> "name"
added "base" group setting in group service
simplified exception handling, added tests, fixes
removed parameters mock
removed parameters mock 2
removed the parent_group_id field, small fixes
refactoring, cleanup, tests added
updated core service interface
added systemgroup resource
Merge pull request #1 from shongo/devel

Merge devel to master