PHRAS-114 #fix Add candidate in thesaurus
 fix bug in firefox
Merge pull request #1137 from jygaulier/fix-PHRAS-65

 fix bug in firefox
Fix minor issues
Merge pull request #1138 from nlegoff/fix-38issue

[3.8.6] minor issues
Merge pull request #1136 from nlegoff/fix-114

[3.8.6][PHRAS-114] Add candidate in thesaurus
phras-36 #time 4h
first proto, wip do not merge
speedup occurences calc
clean
speedup hit compute (green digits in prod/thesaurus)
Merge pull request #1140 from jygaulier/speedup_thesaurus_prod

[3.8][PHRAS-36] Speedup thesaurus prod
Improve generation of vagrant vm
Add gitignore rules
Merge pull request #1146 from nlegoff/vm-improvement

[READY][3.8.6]Improve generation of vagrant vm
Merge pull request #1145 from nlegoff/upd-gitignore

[3.8.6][READY]Add gitignore rules
add --config.interactive=false option for bower