Images added + dynamic display of game table

Added avatar gallery (23 images).
Profile page : diary

not finished.
Merge remote-tracking branch 'origin/master'

Conflicts:
	app/View/Arena/index.ctp
	app/nbproject/private/private.xml
	app/webroot/css/webarena.css
Merge branch 'master' of https://github.com/RobinDesir/SI1-Web-Arena

Conflicts:
	app/tmp/cache/persistent/myapp_cake_core_file_map