start removing image support, punt fixtures for css_images
start removing image support, punt fixtures for inline_images
remove request/parsing dependencies, and add stylesheet (which will do the requests/parsing)
remove request/image from library
all request tests offloaded to stylesheet gem
no longer need fixtures for request tests
update version dependency for stylesheet api changes
color_parser now automatically overwrites previous declarations (just as css would), so we need different classes
finish switch over to depending on stylesheet gem
update dependency on stylesheet for various parsing fixes
clean up spec context names
use convenience methods for grabbing just import rules or style rules to get rid of constant dependency
bump version
Merge branch 'stylesheet_gem'