Merge pull request #552 from ControlSystemStudio/bug551

Bug551
- Created test fragments for plugins with unit tests.
- Updated .gitignore for InteliJ and Notepad++ bak files.
- Removed ESS specific config from POM file.
- Added third party repo to pom.
- Fixed dependencies in test projects. - Fixed versions in pom files for plugins.
- Temporary removed test fragments that throw exception
- Removed test fragments from core-all feature.
- Added thirdparty repo
Merge pull request #554 from Babicaa/master

Unit tests in core plugin
Merge remote-tracking branch 'origin/master' into sns4
- Reverted changes in export packages for plugins.
Merge pull request #561 from Babicaa/master

RDBUtil no longer accessible #559
Merge remote-tracking branch 'origin/master' into sns4
o.c.trends.databrowser: Fix NPE when removing item

This error was added with the auto-history-fresh implementation.
o.c.trends.databrowser2: Tab/space cleanup
o.c.trends.databrowser: @inheritDoc to make inherited javadoc more
obvious

.. because that one mentions Model may be null