audio files
fetch audio files on csv imports
add Fixer
use fixer to move files into their destination if they are remote
use the uploader to determine where the file should be stored on fixers side
clarify url
switch to use the correct scheme for IA
set directory for audio file uploads
Merge pull request #51 from chrisrhoden/audio_files

Audio files
slim in asset pipeline
remove these helpers
render things in the asset pipeline
refactor to properly use the dependency loader. also easier to debug this way.
Merge pull request #52 from chrisrhoden/slim

Slim
fixes and fades
much better handling of importing
fix spec
Merge pull request #53 from chrisrhoden/import_fixes

Import fixes
precompile correctly
handle asset_paths