ENH: Make backend tests independent
ENH: Add make commands
STY: Cleaner
FIX: Fix backends test
FIX: Fix for Py26
FIX: For Py26
FIX: Fix warnings
ENH: Add extra
FIX: Coveralls
FIX: Remove debug print
FIX: Fix test
ENH: Better printing
FIX: Refactor
STY: Better comment
FIX: Better app testing
FIX: Missing file
FIX: Fewer code paths
ENH: Refactor to ext
FIX: Better organization
FIX: Missing file