improved a lot of coverage on tests (domain)
#8 adding Like feature
#8 adding Like feature
#8 adding Like feature
Merge branch 'jmic/US-8/liking_bar/1' of https://github.com/Mathsoum/Bar-O-Maitre into jmic/US-8/liking_bar/1

Conflicts:
	grails-app/domain/bar/o/maitre/Bar.groovy
	grails-app/views/bar/show.gsp