Bit shifting by 32 bits is undefined.
Fix links in documentation (/rfcs/ to /doc/)
Merge pull request #286 from r000n/master

Fix links in documentation (/rfcs/ to /doc/)
If the ping table fills up, fail smoothly and try again instead of crashing with a NULL deref.
Fixed #288 crash when pinging yourself on apple.
Move some of the functions of cjdns-openwrt into cjdns proper