[SYNCOPE-352] Loading connector bundles form configured ConnId locations even without connector instances defined

git-svn-id: https://svn.apache.org/repos/asf/syncope/branches/1_1_X@1466042 13f79535-47bb-0310-9956-ffa450edef68
[SYNCOPE-352] Merge from 1_1_X

git-svn-id: https://svn.apache.org/repos/asf/syncope/trunk@1466044 13f79535-47bb-0310-9956-ffa450edef68