#220 added directive for hiding and showing details
#220 storing state of each show-hide panel

the state of each show-hide panel can be stored separately
#220 missing information

added missing information of the usecases as show-hide details (collapsing of individual sections does not work yes)
#220 missing information of builds and branch

added show-hide element for branch and build information in main usecases page
#220 missing information of builds and branch

added basic information of branches and build (not collapsable yet), the details of branches and builds are missing, this resquires a refactoring of metadata.html (maybe turn it into a directive)
#220 collapsing of metadata for usecase page
#220 collapsing of metadata for main page
#220 metadata refactored into directive
#220 collapsable panel directive
Merge branch 'hotfix/1.0.3'
Merge branch 'master' of https://github.com/scenarioo/scenarioo