Fixed bug in BiCGstab solver introduced when solver was made generic.
Added quda::complex which can be deployed on CPU or GPU.  Accessor functions now use quda::complex instead of std:complex (in preparation of implementing the multigrid operators on the GPU).
Cleaned up the line indentation in lib reduce_quda.cu
Augmented MG testing, with verbose output.
Fixed logic failure for preserving native field ordering in ColorSpinorParam::setPrecision().
ColorSpinorFieldOrder accessor now works on cuda fields.
Added device cuda support to gauge accessor.  Small fixes to color spinor accessor/