exception handling
merge
Merge branch 'devel' of https://github.com/triAGENS/ArangoDB into devel
error handling
Merge branch 'devel' of https://github.com/triAGENS/ArangoDB into devel
Merge branch 'devel' of https://github.com/triAGENS/ArangoDB into devel
Merge branch 'devel' of https://github.com/triAGENS/ArangoDB into devel