converted image caching to dogpilecache and memcached
merged develop
added deps to setup.py
merged develop
region no init'ed once. value not properly saved in cache, so create method always called
some hack to test simplifying the image objects going to the cache
able to cache some image sets, but many larger ones fail (at least size seems to be a factor)
merged develop
centeral cache def configured from console.ini
cache key generator work in progress
merged develop
added back invalidate image cache code. Properly calls invalidate in memcached. Uses custom cache key generator
merged develop
invalidate both owned by and executable by image sets
invalidate 'anyone' images set also since that is affected by snapshot registration/deregistration
resolved merge conflicts
clean up block_device_type object for pickling
switch instance types and availability zone caches over to dogpile
updated last beaker cache method. checking in cache.py.. whoops
merged develop