Also check that input matrices have size rather than they have nonzero rows x cols

[Jenkins] auto-formatting by clang-format version 5.0.2-svn328729-1~exp1~20180509124008.99 (branches/release_50)

Also check that input matrices have size rather than they have nonzero rows x cols

This reverts commit 769c6314.

This reverts commit 0e928a58, reversing
changes made to 18755752.

[Jenkins] auto-formatting by clang-format version 5.0.2-svn328729-1~exp1~20180509124008.99 (branches/release_50)

[Jenkins] auto-formatting by clang-format version 5.0.2-svn328729-1~exp1~20180509124008.99 (branches/release_50)

Removes thread block size and work per thread in helpers.hpp since they would be double defined there

Removes the LOWER, UPPER definitions from the helpers so they are only in the openCL context's base macro map. Adds an options users can pass to global and local kernels to define macros.