Merge pull request #823 from ncos/knc_faildb

updated fail_db.txt for knc target
pass g++ as a compiler to run_tests.py when ispc_build_compiler==gcc
Merge pull request #824 from ncos/stability_compiler

pass g++ as a compiler to run_tests.py when ispc_build_compiler==gcc
passing icpc compiler for knc target
add advanced test completion logging
merged in the gcc_compile branch
fixed typos, added command line arguments check to regresion_read.py
Merge pull request #825 from ncos/stability_compiler

passing icpc compiler for knc target
regression_read.py improved
renamed regression_read.py -> tt_read.py
add host name printing in stability.log and e-mail body
comments on merge request are taken into account
tt_dump_read.py import bux fixed
Merge pull request #826 from ncos/advanced-dump

Advanced dump
fixed run_tests.py bug
Merge pull request #827 from ncos/advanced-dump

Put the new code under try-catch
added LLVM_3_6 var
fixed 3.6 llvm build in type.cpp
removed duplicatees in Makefile
checked Makefile 'if' constructions, fixed ReleaseNotes.txt, added comments to util.m4