installer: Updated for TDM-GCC 4.8.1; Updated licenses
- Licenses were updated to more accurately reflect the licenses applying to the various MinGW-w64 components
- A new tab was added to the IDE/installer/licensing sample specifically for the MinGW-w64 runtime
- The GCC, GDB tab was updated to contain all licenses pertaining to the various TDM-GCC components
- The generic GPL license previously used for GCC/GDB was renamed to gpl2 and GPLv3 and LGPLv2/v3 were added as well
- TDM-GCC/MinGW-w64 licenses are no longer part of the optional documentation components (which were not
  installed by default) and are now always installed in Program Files/Ecere SDK/tdm/licenses
- Tabs were added to the licensing sample to reflect all acknowledgements required for the default Ecere dll
ear; ide/Project: Now compressing 64 bit Windows executables since UPX 3.91 adds support
ide/debugger; crossplatform.mk: (#1016) Ensure we can build out of the box as 32 bit on 32 bit Windows
- Detecting 32 bit system Windows systems and auto-setting -m32 (Currently checking for ProgramFiles(x86) env var)
- Built output will be in e.g. release.win32, not release.win32.x32 as ARCH is set after ARCH_SUFFIX
- GDB executable used on Windows has been updated to match executables supplied with the installer:
   'i686-w64-mingw32-gdb' for the 32 bit version, 'gdb' for the 64 bit version
ide/about: About box update