Upgraded multi-channel capabilities. (issue #93)

Upgraded the way games are managed in CasinoBot to allow any number of instances of the games to run in their own channels. Updated "join" and "fjoin" commands to reflect these changes. Added overrides for equals() and hashCode() in CardGame. Other minor changes.
Added ability to load custom INI files. (issue #93)

Added the ability to load custom INI files when starting Blackjack or TexasPoker by providing the path to custom INI file as a parameter. Added documentation for CasinoBot. Added ability to start CasinoBot with a custom config file by adding it as a run-time argument. Moved class member declarations to the top of the class in CasinoBot, CardGame, TexasPoker and Blackjack.
Changes to ensure compatibility with Java 6.

Removed java.util.Objects and any usage of it. Reverted behaviour for null value of botNick in CasinoBot.
Added a couple of settings. Documentation and code cleanup.

Added "showdown" setting to allow set the time delay during a showdown for TexasPoker. Added "startwait" setting to allow changes to the wait time after a round is started. Added documentation and removed some superfluous methods. Changed private members in CardGame to protected.
Documentation and code cleanup.

Changed all non-public methods in CardGame to protected. Changed all nested classes in CardGame to private. Moved "join" command back to CardGame. Changed loadHouseStats() and saveHouseStats() to loadGamestats() and saveGameStats(). Added game rules and game stats strings to strlib. Added more documentation.
Documentation and code cleanup. (issue #34)

Changed Player and Hand classes as nested classes of their respective games. Removed README. Added GameManager interface for usage of the package by other PircBotX implementations. Updated scopes for some nested classes.
Added "games" command. Documentation and code cleanup. (issue #34)

Added a "games" command in CasinoBot to output the games currently running and in which channels. Added more documentation and updated more scopes. Updated README.md with some fixes.
Minor changes.

Added some missing values in documentation. Updated Freenode link in README.md.
Merge branch 'testing'