documentation fixes
fixed doxygen errors
added first version of statistics
Merge branch 'devel' of github.com:triAGENS/ArangoDB into devel
Added full test of graphViewer under coverage
Added a test for API view
Removed unused function and renamed ApiView according to standard
Added test for AppDocumentationView, almost equal to ApiView
Merge branch 'devel' of https://github.com/triAGENS/ArangoDB into mjmh