Added possibility to skip pipeline in cause of failure during transformation #56. 
Extraction can go to multiple graph or into one graph.
Log is used instead of event to report 'extraction problem', #35.
Merge branch 'develop' of https://github.com/UnifiedViews/Plugins into develop

Conflicts:
	t-filesToRdf/pom.xml
Removing l-filesToSparql
Removing obsolete DPUs
Removing obsolete DPUs from pom.xml
Revert "Removing obsolete DPUs"

This reverts commit 2c345f86cf76aed19349fa3d8971b1f1407b9b7c.
Once again removing obsolete DPUs
Merge branch 'develop' of https://github.com/UnifiedViews/Plugins into develop
Added scroll bars into dialog, added comments with author to DPU class, unused imports removed
Fixed dialog layout and add DPU description generation #64
Fixed to small TextFields  #64
Merge tag 'UV_Plugins_v1.4.0' into develop

UV_Plugins_v1.4.0

Conflicts:
	l-filesToLocalFS/pom.xml
	l-filesToScp/pom.xml
	l-filesToScp/src/main/java/eu/unifiedviews/plugins/extractor/filestoscp/FilesToScpVaadinDialog.java
	l-filesToVirtuoso/pom.xml
	t-filesToRdf/pom.xml
Downversioning
Removing obsolete DPUs README files
Optional input and optional field for t-Metadata #67, #66
L-Catalog initial commit
Initial commit 2
Updating l catalog
First version of LCatalog DPU withou proper error handling
Upgrading virtuoso libraries to newer development version