Better error reporting for failing analyzers, don't urllib.quote() unique asset id
Fixed convert_map for some transcoders
Added blender text to image transcoder
Removed unused imports and did some minor pep8 cleanup.
Minor cleanups

 - Removed unused imports from several files
 - Fixed linter errors (operand spaces, etc)
Revert "Removed unused imports and did some minor pep8 cleanup."

This reverts commit 154f82711691bb34059c4f21dd97b1defbce1f4c.
Merge branch 'cleanups'

* cleanups:
  Minor cleanups
Merge pull request #4 from induane/master

Removed unused imports and did some minor pep8 cleanup.
Blender behaviour change, need to set use_sky to false, not just reset the world.
Merge branch 'master' of github.com:sueastside/damn-at
Updating