Normalize include guards for all *.h and *.hpp

Some files had include guards that didn't match the file name, and
others were missing the include guards entirely.

Standardized this so that every include file has an include guard, and
all the guards are of the form TWOBLUECUBES_<FILENAME>_<EXT>_INCLUDED

projects/XCode4/iOSTest/iOSTest/TestObj.h

@@ -7,6 +7,8 @@
 //
 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
 //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#ifndef TWOBLUECUBES_TESTOBJ_H_INCLUDED
+#define TWOBLUECUBES_TESTOBJ_H_INCLUDED
 
 #import <Foundation/Foundation.h>
 
@@ -19,3 +21,5 @@
 @property (nonatomic, assign ) int int_val;
 
 @end
+
+#endif // TWOBLUECUBES_TESTOBJ_H_INCLUDED