Add test for rethinkdb backend
Initial implementation of rethinkdb backend
Import in blaze/__init__.py to prevent reordering
Specify an ordering since rethink returns results unordered if not specified
Test multiple column sort
Correct syntax
Put the import in a try except suite
Use ternary if for sort order
Rename Table -> RTable
Create and drop our database in the test fixture
Install rethinkdb python package in travis builds
Install the rethinkdb ubuntu binaries
Start a rethinkdb server
Clean up star imports
Test reductions
Sort by a field for consistent results during testing
Implement reductions
Test discover
Implement discover
db "test" is already there do not create it