Initial commit of AQL Query Builder, some tests for simple cases
Implemented nested queries and LET statement
Finished basic implementation of query builder
AQL builder with cursor
Added some documentation of AQL Query Builder
Finished implementation of AQL
Added documentation for AQL Builder API
Added errors handling for AQL queries, more tests for arango.cursor.Cursor
Removed obsolete files
Fixed urllib2 client issue with empty error messages
Added Pypy detection for integration tests
Merge branch 'query_builder'
Increased version, updated README