Added std::cbegin() for infinite_sequence_adaptor
Reordered includes
Closes #62
Minor cleanup
Fixed a compilation bug: btas::size_type not defined.
Fixed faulty Tensor::operator=(_Tensor) methods. Fixes #64. Also fixes bug where assigning from a TensorView referring to the Tensor being assigned caused faulty behavior (for example, T = permute(T,permutation);  was breaking).
Added provisional implementation of C++14's cbegin/cend/rbegin/rend
Merge branch 'master' of https://github.com/BTAS/BTAS
code quality - let me remove trailing whitespaces
std::valarray works as Storage. Documentation is still upcoming. Related to #50
Merge branch 'master' of https://github.com/BTAS/BTAS
Merge pull request #14 from BTAS/master

sync w BTAS/BTAS