added missing =
Merge branch 'devel' of github.com:triAGENS/ArangoDB into devel
added waitForSync
Merge branch 'devel' of github.com:triAGENS/ArangoDB into devel
Merge branch 'devel' of github.com:triAGENS/ArangoDB into devel
changed http return codes for document update and delete
added link to graph collection
#412 added If-None-Match, If-Match and waitForSync
Merge branch 'devel' of github.com:triAGENS/ArangoDB into devel