add in user images, refactor to add parent Image class
refactor user accounts relationships
missing individual account tests
refactor public assset with default impls
add size to audio files
add comment about possible route refactoring
refactor images to use public asset urls
rename scope for getting only member based accounts (group & station)
add back embedded user for individual account
fix polymorphic url for image
bump ruby to 2.1.1
set travis to use new ruby version
Merge pull request #11 from kookster/master

refactor user.accounts and images