Battery of tests on the client GUI which is now able to :
- determine wether the text entered is a message or a command
- determine if the command is regular or not
- determine the command name from the text entered
- get the command id from the command name
- store the command id into a QString on 2 bytes
- remove whitespaces from the start and the end of the text entered

[PROBLEM ENCOUNTERED] : how to differentiate a general who command from a who on a channel;
Merge branch 'master' of https://github.com/yafeunteun/IRC

Conflicts:
	client.cpp