Merge pull request #184 from dennishendriksen/testing

Use sql timestamp format in datetimepickers
Merge pull request #185 from dennishendriksen/testing

Fix FindBugs warnings
Merge pull request #186 from dennishendriksen/testing

Resolve findbugs warnings + add tests
Merge pull request #187 from dennishendriksen/testing

Fix FindBugs warnings
Merge branch 'testing' of https://github.com/molgenis/molgenis into testing