Adapted project name of HttpClient
Added Travis CI badge to README
Updated HttpClient dependency to 4.2.3
Strip the Web API key from debug output
Use optBoolean() in GameItem where applicable
Adapted GameItem parsing to DotA2 API changes
Simplified RCONSocket byte handling

Fixes koraktor/steam-condenser#198
Fixed some items missing from inventories

The NPE that could be caused by missing item attributes in the schema
was silently ignored in GameInventory#fetch().
Do not silently ignore exceptions while creating GameItems
Removed obsolete throws declaration in RCONSocket
Fix NPE in RCONSocket#close()

Thanks to @danielsawan (see koraktor/steam-condenser#203)
Fix resource leak in GameServer

Open UDP sockets also need to be cleaned up.

Closes koraktor/steam-condenser#205
(De)initialize the UDP socket in GameServer
Updated license year
Version bump to 1.3.4
Merge branch '1.3-stable'
Add link to Google+ page to README
Add contribution guidelines
Slightly improve contribution guidelines
Fix website URL in README