Rlease GCC ARM Embedded 4.8 update 1

Written for GNU Arm Embedded Toolchain by Terry Guo on 2014-03-28

The 4.8 2014q1 update release is ready at https://launchpad.net/gcc-arm-embedded/4.8/4.8-2014-q1-update and https://launchpad.net/~terry.guo/+archive/gcc-arm-embedded.

Important bugs fixed in 4.8 2014q1 update release:
* Incorrect write to packed field when strict-volatile-bitfields enabled
  http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56997
  https://bugs.launchpad.net/gcc-arm-embedded/+bug/1197604
* ICE reload1.c:1058 using 4.8 with mthumb fomit-frame-pointer
  https://bugs.launchpad.net/gcc-arm-embedded/+bug/1278004
* Fix ARM NAN fraction bits
  https://sourceware.org/ml/libc-alpha/2014-02/msg00740.html
* Unable to redefine weak function in -flto incrementally-linked executable
  https://sourceware.org/bugzilla/show_bug.cgi?id=15323
* ICE on Windows with due to mingw version too old
  https://bugs.launchpad.net/gcc-arm-embedded/+bug/1267504

This release fixed a lot of issues found since 4.8 major release, especially stability related issues. Highly recommend to migrate to this release. Also very appreciate those who use this tool chain, report issues or share experiences. Your contribution make this small community better and better.

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