added compiler version guards, '__scatter64_i64' is not implemented
'__scatter64_i64' function fixed for icc 13
fixed noisy warnings in icpc13 produced by unsupported 64 bit 'reduce' functions
fixed warnings produced by 64 bit reduce functions without affecting the functionality
removed fixed fails (fixed by Vsevolod) One new runfail
added entries for icpc13 (the same as for icpc15)
Merge pull request #924 from ncos/knc-backend-merge

Fix errors generated by knc.h present in icpc 13.1