Implemented the row vector and column vector facades for matrix.
Merge pull request #2 from jdurancomas/ublas_feature0011_mvrange_interface_t7411

 jdurancomas  implementation of vector and column vector facades
Added some trace logging for matrix_vector facade
Modified bool equals in vector_assign.hpp to properly work with integral types (changed < to <=). Also made some changes in test_matrix_vector
Improved headers in test program.
Merge pull request #6 from jdurancomas/remotes/origin/ublas_feature0011_mvrange_interface_t7411

Remotes/origin/ublas feature0011 mvrange interface t7411
Merge pull request #7 from jdurancomas/develop

Implemented cbegin, cend, crbegin and crend member functions in matrices, vectors and storage.
Merged ublas_feature0011_mvrange_interface_t7411
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Improved documentation of matrix_vector.hpp