Finally fix encoding problems in PacketBugger#getString()
Treat player IDs as unsigned integers
Disable doclint on JDK 8
Version bump to 1.3.8
Fix wrong password detection for GoldSrc RCON
Optimize GoldSrc RCON requests

Only send second request if authentication succeeded.
Merge pull request #3 from koraktor/1.3-stable

Syncing with original repo on 20140816