Switched gcov to gcov 4.9 in travis config
Switched gcov to gcov 4.9 in travis config

am11/Criterion,kaidowei/Criterion,kaidowei/Criterion,a1lu/Criterion,offa/Criterion,am11/Criterion,offa/Criterion,Snaipe/Criterion,kaidowei/Criterion,a1lu/Criterion,a1lu/Criterion,am11/Criterion,Snaipe/Criterion,Snaipe/Criterion,Snaipe/Criterion,Snaipe/Criterion,a1lu/Criterion,offa/Criterion,kaidowei/Criterion,offa/Criterion,am11/Criterion,offa/Criterion,am11/Criterion,a1lu/Criterion,kaidowei/Criterion