New version
Updated versions
Added document revision
Updated status of the future version
Tested and updated revision for documents
The revision should now be set even with queries
Fixing problem that with all documents retrieved via collection they couldn't be updated
Fixing kwargs with models
sync to origin master v0.5.3
add unit test for big number
Merge branch 'master' of https://github.com/saeschdivara/ArangoPy