* Add two new files: src/baseobject.[ch]
* Have CHECK_OBJECT call any of CHECK_DROID, CHECK_PROJECTILE or CHECK_STRUCTURE depending on the object's type
* Change CHECK_DROID and checkDroid to use the AT_MACRO to get the current filename and line number
* Change checkDroid to use ASSERT_HELPER to provide the source of the assertion
NOTE: The autotools, Code::Blocks, win32 Makefiles and MSVC buildsystems are updated, Xcode will still require an update
git-svn-id: svn+ssh://svn.gna.org/svn/warzone/trunk@5866 4a71c877-e1ca-e34f-864e-861f7616d084