\#72 Added jsch.jar library which is needed to git repositories cloning
#72 changed buid properties that jsch library is added to plugin
#72 Clonnig repository is working almost fine. There is only no progress displayed in knime log console
#72 Added groups in settings window
#72 Added progress monitor which display cloning progress on KNIME console with enabled INFO level
#49 Update of node help and description
Fixed path to test_repo.zip for GitOnline test
Skipping merge commits in GitOnline
#72 Improved displaying info about clonning repository. Fixed problem that local dest path have to be empty - now it don't have to be empty
#72 Changed displaying coning progress from KNIME's console to settings window
Fixed typo
Merge pull request #73 from tomasz-kuzemko/dev

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