Fixed the action messages (/me <message>) not working if the spectator chat is enabled.

Also, little restructuration (there is now a method in the main class used to send a spectator chat message, used twice by the listener).
Fixed a bug about the /me messages being every time masked to non-specs.
(If the spectator-only chat is enabled.)
Better code clarity.
Merge pull request #7 from AmauryCarrade/bugfixes

Yet another (Yet another bugfix)