MinGW-w64 builds of GCC/Binutils for Windows

These packages contain both 32-bit and 64-bit compilers/binutils, and the mingw-w64 runtime headers/libraries.

The latest version includes:
- gcc 4.7.3
- gmp 5.0.5
- mpfr 3.1.2
- mpc 1.0.1
- ppl 0.12.1
- cloog-ppl 0.15.11
- binutils 2.23.2
- mingw-w64 v2.0.8

Additionally, following libraries are included:
- pthreads-w32 2.9.1
- zlib 1.2.7
- bzip2 1.0.6

This toolchain should be complemented with a MSYS environment for a full build-system.

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Version History:
r6 - 2013-04-13
    Updated to GCC 4.7.3, mingw-w64 2.0.8
r5 - 2012-11-04
    Replaced experimental winpthreads with pthreads-w32 2.9.1
    Updated mpc to 1.0
r4 - 2012-10-27
    Updated scripts to Zeranoe's Script 3.0.6
    Updated to GCC 4.7.2 and mingw-w64 v2.0.7
r3 - 2012-07-14
    Updated to mpfr 3.1.1
    Updated to mingw-w64 stable/v2.x r5214
r2 - 2012-06-23
    Switched to MinGW-w64 stable/v2.x branch and clean build scripts
r1 - 2012-06-20
    Initial Version based on MinGW-w64 with GCC 4.7.1
