Hotfix 0.9.4b

Balancing : - Blood Whirls, Blood Siphon and Bloodspout no longer prevent from casting other spells during their channeling. Features : - A global volume slider has been added to the settings panel. Changes : - The loading screen has a new illustration. - Added some new vfx and improved others. Corrections : - Some tooltips and translations have been fixed. - The xp reward after a victory is working again. - Chaser and engineer armors now match the correct model. - Fixed a bug where clicking on a portrait would not open the profile panel if the player had joined a game. - Some delay has been added to the spawning of the bots so that they no longer appear invisible.