added metadata about data sources and processing to dataset description
Package origin information is now generated when packaging, visible in
dataset info, and a simple html report version of this is generated for
each project (see #1607)
Merge branch 'develop' of https://github.com/Caleydo/caleydo.git into
develop

Conflicts:
	org.caleydo.data.importer/src/org/caleydo/data/importer/tcga/TCGADataSetBuilder.java
	org.caleydo.data.importer/src/org/caleydo/data/importer/tcga/regular/TCGATask.java
Merge branch 'develop' of https://github.com/Caleydo/caleydo.git into
develop

Conflicts:
	org.caleydo.internal/launch/Caleydo Win.launch