Removed last bits of legacy code from libobjc2. Added new exception handling implementation.

Author: theraven

COPYING

@@ -1,37 +1,20 @@
-This document governs the GNUstep Objective-C runtime.  This is based on the
-GCC Objective-C runtime, which is governed by version 3 of the GNU General
-Public License and on the Étoilé Objective-C 2 framework and Objective-C
-runtime, which are MIT licensed.  
+Copyright (c) 2009 David Chisnall
 
-As a result of this dual inheritance, some portions of this library are more
-permissively licensed than the whole.  When viewed in aggregate, this library
-is licensed under the GNU General Public Licence, version 3 or later (at your
-option).  You may find the relevant license texts in full in the following
-files in this distribution:
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
 
-COPYING3 contains the GNU general public license version 3. 
-COPYING.RUNTIME contains the GCC runtime exemption to the GNU GPL.
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
 
-Some individual files retain their original MIT license.  These are:
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
 
-blocks_runtime.m 
-class_table.c
-hash_table.h
-ivar.c
-lock.h
-mutation.m
-pool.h
-runtime.c 
-string_hash.c
-sync.m 
-objc/blocks_runtime.h 
-objc/runtime.h
-NSBlocks.m
-
-All of the private headers (those not in the objc/ directory) are also covered
-by the MIT license, in as far as they are covered by copyright law.
-
-These files may be used for any purpose, including binary-only redistribution,
-according to the terms of the MIT license, as long as their copyright notices
-remain intact.  You may find the full text of the license for these files in
-COPYING.MIT