[src,scripts,egs] Misc small fixes, including fix to TDNN-F results in mini_librispeech#2565

Merged

danpovey merged 9 commits intokaldi-asr:masterfrom

danpovey:misc_fixes

Jul 22, 2018

Commits on Jul 18, 2018

[src] Add dependency on sox; cosmetic changes to steps/decode.sh
danpovey
committed
Merge remote-tracking branch 'origin/add_diag_mat_mat_speedup'
danpovey
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Commits on Jul 19, 2018

Merge remote-tracking branch 'upstream/master'
danpovey
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Commits on Jul 22, 2018

[egs] Fix mix-up in mini-librispeech TDNN-F results
danpovey
committed
[build] add sox to packages in travis.yml to stop extras/check_dependencies.sh failure
danpovey
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