Merge pull request #1 from NerdNu/master

pull changes since last fork
Add explicit check for age locked mobs

During breeding events, the ages of surrouding mobs were previously changed
without regard to their age lock status, this adds a check for if they
have been age locked to prevent a situation where an age locked baby mob
would become an adult.  Bukkit should probably be honoring age locks
regardless of age, so this is more of a workaround for how ages are
handled than actual fix of something wrong with the original method.
Merge pull request #11 from tompreuss/master

Add explicit check for age locked mobs