Added Error codes and meanings
minor fixes in gharial and ahuacatl
Merge branch 'devel' of https://github.com/triAGENS/ArangoDB into devel
Fixed parameter types for boolean query parameter. Fixed return code for edge creation. 400 is thrown on invalid edge, 404 is thrown if collection or graph not found
Merge branch 'devel' of github.com:triAGENS/ArangoDB into devel
minor bugs ahuacatl
Merge branch 'devel' of https://github.com/triAGENS/ArangoDB into devel
minor bugs ahuacatl
Converted gharial and aardvark to joi.