improved a couple of tpyes
Merge pull request #25 from inaka/hernan.types

Improved the cassandra node type
added rebar folders to gitignore
adding the config and a gen_server to handle the c* nodes
fixed a couple of problems
fixed the node check and the timer not being saved correctly
added the discovery gen_server to the supervising tree
notifying the queue
using the right types for the cassandra seed node config value and fixed the node comparisson
added a timeout to the connection