Merge pull request #19 from Roysvork/master

PATCH Now invalidates cache
Initial check-in for memcached server
Merge branch 'master' of https://github.com/aliostad/CacheCow

Conflicts:
	src/CacheCow.Server/CachingHandler.cs
Initial release
Adding memcached server to build
Adding CachePolicy for server
Initial commit for CacheRfresh - renames
Adding CacheRefresh
renames + refresh policy
fixing issue #22 and renaming policy attrib
adding no-store logic
; forgotten
renaming HttpCacheRefreshPolicyAttribute
Adding license - issue #23