Update README.md
purchase handlers moved
refactoring mq subscriptions
mqs
mqs
unnessesary bind
mnesia initial store backend
added mnesia backend
fix includes
kvs backend version
mnesia 2i and is_seq fix
make riak's notfound and mnesia's no_found agnostic
all index queries moved to backend drivers
disable riak from build
accept code review
second part of code review
comments about compex keys
some refactoring
some refactoring