dynamic generate sweep methods on NiceCache::Store
fix NiceCache.build return value, trim spaces
setup MockRedis
add debugger gem to test group, add pry to spec_helper
rename @members to @stores
extract method (unfinish)
Change Design: tag base caching store
improve method call
add sweep_fragments
use MockRedis, separate clean up benchmark
use SimpleCov instead of Coveralls
change sweep_fragments implementation
rename add to cache, and some minor fixes
improve gemspec
improve gemspec
add License