MetaScale/nt2 — pull request #882 by jfalcou (2014-12-12 18:46:17+00:00)
Title: Refresh memory::buffer implementation

buffer and array_buffer were suffering of some design issue :

- its divergence from some standard sequence concept
- its silent 'not really empty' trick to make some function works on empty table
- array_buffer was relatively redundant with boost::simd::aligned_array

This series of patch make buffer more STD like, remove the 'not really null' hack and reimplement functions that required it. This is also a transition to a c++11 friendly implementation.