Add license header to all files and update to latest version.

dllmain.h

@@ -1,3 +1,19 @@
+//	BlitzSteam - Steam wrapper for Blitz.
+//	Copyright (C) 2015 Project Kube (Michael Fabian Dirks)
+//
+//	This program is free software: you can redistribute it and/or modify
+//	it under the terms of the GNU Lesser General Public License as
+//	published by the Free Software Foundation, either version 3 of the 
+//	License, or (at your option) any later version.
+//
+//	This program is distributed in the hope that it will be useful,
+//	but WITHOUT ANY WARRANTY; without even the implied warranty of
+//	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//	GNU General Public License for more details.
+//
+//	You should have received a copy of the GNU Lesser General Public License
+//	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
 // STL Exceptions
 #include <exception>
 #include <stdexcept>