Threat control LWRP

Cf. first commit and README changes:

Add a threat_control LWRP, allowing to whitelist/blacklist IPs on CloudFlare
* Stores last action in a node attribute cache, CF API is only called once per day, or if status changes
* IP attribute defaults to current's node IP address
Actually, I wanted to ask you about this.
For such a change, should I actually increment the version number myself, or pile up changes in the list, letting you pile up a version number whenever you release?