Moved tests to the right directory
Removed implicit determineResult within closeVoting (closes #27)

- this leads to the duplicate random generation, because determineResult is called from the VoteTimer as well
Added the ability to reopen a closed voting without removing the votes
Improved html-layout on settings.xhtml
Fixed formatting
Merge branch 'fix-duplicate-random'
Removed m2e pluginManagement

- Instead use current m2e feature to disable execution within workspace configuration.