add gather64_i32
add gather64_double
add gather_base_offsets32_i16
add gather64_i8
add gather64_i16
add scatter64_i32/float
fixed 9 runfails caused by wromg permutation masks
add scatter_int16
add insert_element(vec1_ ...
add cast_sext plus shl/ashr function fix
add cast_bits(i32 i32)
add cast_bits(i64 i64)
add __masked_load_i64
add 'examples/intrinsics/known_fails.txt' to track difficult runfails/compfails
examined soa-18 runfail
upate fail_db (fixes 279 compfails and 4 runfails). New runfails: soa-18, pmulus_vi64, funcptr-varying-7, funcptr-varying-8
Merge pull request #926 from ncos/knc-backend-merge

Further improvements in knc.h