Fix travis mongodb install command
Merge pull request #110 from EmmanuelVella/tests

Fix travis mongodb install command
Add hhvm and remove sf 2.2 support from travis config
Merge pull request #111 from EmmanuelVella/travis

Add hhvm and remove sf 2.2 support from travis config
provide virtual package

This package will be required by libraries that require an
implementation of it, but don't wish to specify this one in particular.
Merge pull request #113 from greg0ire/dependency_management_improvements

provide virtual package
Missing closing parenthesis added
Merge pull request #114 from danielsan/patch-1

Missing closing parenthesis added
Added custom list links to the documentation
Merge pull request #116 from karolsojko/list_links_documentation

Added custom list links to the documentation
Merge remote-tracking branch 'sonata-project/master'