Paul Springer

Add support for Travis CI

fix compilation issue for haswell + gcc 7.3.1 (impossible constraints)

2

I'm not sure why I'm running into this issue, but gcc 7.3.1 is failing with ``` gcc -O2 -O3 -fomit-frame-pointer -mavx2 -mfma -mfpmath=sse -march=haswell -Wall -Wno-unused-function -Wfatal-errors -fPIC -std=c99 -D_POSIX_C_SOURCE=200112L...

cuTT now supports tensor transpositions of the form: B_\perm(i0, i1, ...) = alpha * A_{i0,i1,...} + beta * B_\perm(i0,i1,...) with alpha and beta being scalars. TODO: support for alpha and...