* Rewrite ROTMG based on the new implementation in GONUM based on the algorithm proposed by Tim Hopkins, see issue 1452 for the reference
* Correct ROTMG utest for issue1452 and add another from gonum, also correct transposition of expected and observed values in error messages
* Restore the remaining utests
* Try fork test on Cygwin and Linux only, it hangs on at least ARMv8/Android as well
* Use generic sswap/dswap kernels for NEHALEM 32bit to fix fault found by the restored swap utest
* Disable zdotu test for MS cl to work around runtime error -1073741819 on AppVeyor for now
(probably coding error in the initialization of the complex numbers or wrong choice of zdotu API)
