Mobius type Domain wall dslash operator is implemented
unnecessary data communications are removed.
Mobius dslash performance is enhanced

Signed-off-by: Hyung-Jin Kim <hjkim@bnl.gov>
MDWF test program and pythone dslash generator is updated
correct the errors in python generator
QUDA Lanczos working version
modified some bugs
data return bug fixed
updated Lanczos
modifications for memory optimized XPAY
Merge branch 'quda-0.7' into Lanczos
minor bug fixed
Merge branch 'Lanczos' of github.com:lattice/quda into quda-0.7#