Adds stack trace print to add vote controller.
Implements hashCode for PlanningPokerRequirement.
Adds logging for overview table exception.
Fixes issues with passing arrays instead of Lists.
Fixes more exception logs.
Merge branch 'dev' into dev-quality
Fixes more exception logs.
Fixes dumb mistake.
Merge pull request #74 from Team-Combat-Wombat/dev-quality

Fixes some issues pointed out by sonar.