after EBCO optimization, we need to revert my change not to issue a compilation warning.
Switched default storage container: std::vector -> btas::varray

Resolves #25
Merge pull request #27 from evaleev/master

Switched default storage container: std::vector -> btas::varray
Merge branch 'master' of github.com:BTAS/BTAS
Merge pull request #28 from shiozaki/master

EBCO optimization has changed somehow the order of member variables
Merge pull request #7 from BTAS/master

sync with BTAS/BTAS
Slight update of varray constructors
Merge branch 'master' of https://github.com/evaleev/BTAS
Eliminated warnings from -Wall.
Merge pull request #29 from evaleev/master

sync w evaleev/BTAS: eliminates warnings with -Wall
Merge pull request #30 from emstoudenmire/master

Fixed major StorageRef bug. Created diag, group, and flatten Range/TensorView slicing methods.
At least clang++ does not handle recommended AAA initialization style (http://herbsutter.com/2013/08/12/gotw-94-solution-aaa-style-almost-always-auto/). Removed the lone instance.
Fixed compilation error in test_ta.C
Added tieIndex range slicing methods and related TensorView wrappers. Related test code appears in test_tensorfunc.C. Also improved TensorViewOf template to remove any reference modifiers from the type.