Cleanup, remove unused code/method.
Fix upgrade step ids.
Merge pull request #351 from 4teamwork/deif-fix-upgrade-step

Fix upgrade step ids.
Use select statement instead of select table helper to get current version.
Merge pull request #353 from 4teamwork/deif-fix-upgrade-select

Use select statement instead of select table helper to get current version.
Merge pull request #349 from 4teamwork/deif-cleanup-task-overview

Cleanup, remove unused code/method.
Display user-name in personal overview title.

Closes #315.