dependencies to build a riak-based storage plugin
the directories shouldn't be added to the repo
added CUnit required by riak-c-client
riak storage module

(only read-only functionalities have been implemented yet)
dependencies to build a riak-based storage plugin

Conflicts:
	.gitmodules
	storage_plugins/deps/Makefile
added support for store and removal in the riak backend

(untested)
use the correct flags when using dynamic liniking
cleanup
minor fixes + imported riak_client from a fork where some patches have been applied