Set default reconstruct type in tests to no no reconstruction, otherwise default staggered dslash test fails.
Updated configure files for MILC and Chroma on Titan.
Zeroing of cuda color spinor fields should be done asynchronously.
Blas optimizations: all arguments are passed in a single struct which reduces runtime overhead.
Cleanup to ReduceArg instantiaton.
Merge branch 'master' of github.com:lattice/quda
FaceBuffer now uses a single pinned memory allocation instead of multiple small allocations.
cudaColorSpinorField::packGhost now has an optional buffer parameter to override the default device ghost buffer.
All streams except the compute stream are now high priority on CUDA 5.5 and above.
Experimental multi-gpu dslash using zero-copy for face packing.  Default remains stable multi-gpu dslash using packing to device memory followed by cudaMemcpyAsync.