don't display warehouse selection if there's only one

Conflicts:
	htdocs/compta/facture.php
	htdocs/langs/en_US/stocks.lang
	htdocs/langs/fr_FR/stocks.lang
indentation
format
Better phpunit test for web services
Ouput log file into travis check
Try to ouput apache log in travis check
Merge pull request #1220 from csalvador/select_warehouse

Select warehouse
Missing sudo
Merge branch 'develop' of git@github.com:Dolibarr/dolibarr.git into develop
Try to use var into travis file
Show default virtual host
Try variabilisation of script
Missing sudo
minor change to test my Travis account
More accurate log file
Try to fix travis permissions
Try to fix log owner
More sudo for travis
So nearly the goal of having travis working...
Done it ! Enable full phpunit tests with travis-ci.
https://travis-ci.org/Dolibarr/dolibarr/