add gbmv and drop julia 0.5

v1.2.0

upper the bound to julia 0.6

fix gemm

Merge pull request #40 from JuliaGPU/sd/gemm

fix A_mul_Bt!

v1.1.4

Better build

v1.1.3

• fix installation on Mac

v1.1.2

• fix build on windows
• fix build on osx

prefer CLBLAS bugfix release on linux

Merge pull request #30 from JuliaGPU/tk/buildjlclean

pop!(BinDeps.defaults) back when done

GEMV + Bindeps build + General improvements

Merge pull request #28 from JuliaGPU/sd/opencl5.0

rely on OpenCL 0.5.0