NT² 3.0 and Boost.SIMD - Stable release

The first stable release of the 3.x series of MetaScale’s open-source 
software is available: NT² 3.0. It also includes its spin-off project, 
Boost.SIMD (not yet a Boost library). Many Issues have been closed since 
last beta. The main focus of this release cycle was to fix performances 
issues and to stabilize some parts of the API.

Next step will be to separate NT2 and Boost.SIMD into separate 
repositories, thus making one more step toward Boost.SIMD submission 
into review.

[ http://www.metascale.org/nt%C2%B2-3-0-and-boost-simd ]

*Changes & Bug Fixes:*

  - Major performance improvements in both libraries
  - Added experimental support for the HPX runtime for parallelization 
on shared memory systems
  - Optimizations of many elemental functions, in particuler log/ex, 
frexp/ldexp and cbrt
  - More advanced shuffle pattern recognition for SIMD
  - Fixed issues with Visual Studio 2013
  - More functions are force-inlined to ensure good performance
  - New functions for conversion between types and mixing of vectors of 
different sizes
  - Demo applications usable as benchmarks
  - Better handling of errors when an unsupported function is called
  - New API for custom memory allocators

Full changelog is available at 
https://github.com/MetaScale/nt2/releases/tag/3.0.0.

*How to get it ?*

  - Source and binary packages can be downloaded here: 
http://nt2.metascale.org/downloads

  - The release is also available on Github : 
https://github.com/MetaScale/nt2/releases

  - The main master branch is still under development : 
https://github.com/MetaScale/nt2