Set the default action for --enable-idl appropriately, and adjust help string to imply the default based on the option name (enable vs disable)

git-svn-id: https://mingw-w64.svn.sourceforge.net/svnroot/mingw-w64@5646 4407c894-4637-0410-b4f5-ada5f102cad1
Fix the semantics of --enable-secure-api so that --disable-secure-api works as expected

git-svn-id: https://mingw-w64.svn.sourceforge.net/svnroot/mingw-w64@5647 4407c894-4637-0410-b4f5-ada5f102cad1
Cleanup error message logic

git-svn-id: https://mingw-w64.svn.sourceforge.net/svnroot/mingw-w64@5648 4407c894-4637-0410-b4f5-ada5f102cad1
Removed old unused include/directx directory.

git-svn-id: https://mingw-w64.svn.sourceforge.net/svnroot/mingw-w64@5649 4407c894-4637-0410-b4f5-ada5f102cad1
Add fwptypes and iketypes updates for Windows 8, and add new IDL-files
for those headers.


git-svn-id: https://mingw-w64.svn.sourceforge.net/svnroot/mingw-w64@5650 4407c894-4637-0410-b4f5-ada5f102cad1