Modernize and remove useless header text

code_compiler/source/ast/arithmetic.hpp

@@ -1,24 +1,8 @@
-//	Code Compiler for BlitzLLVM
-//	Copyright(C) 2017 Michael Fabian Dirks
-//
-//	This program is free software : you can redistribute it and/or modify
-//	it under the terms of the GNU 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 General Public License
-//	along with this program.If not, see <https://www.gnu.org/licenses/>.
-
 #pragma once
 #include "ast.hpp"
 #include "value.hpp"
 
-namespace BlitzLLVM {
+namespace blitz {
 	namespace AST {
 		enum class Operator : int8_t {
 			Add, /*+*/