fixes #2565 - removes featureLocationPublications

[nathandunn]

fixes #2565
fixes #2574

• remove feature location publications
• create service and use specific REST to access it
• add to UI (in location region)
• service should set all child elements if they share a boundary as well
• output to GFF3
• extend to transcript panel

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• add "isObselete" to interface in detail
  • add "showObsolete" to features in AnnotatorPanel
• should use updateFeature
• update from server
• double-check the export for GFF3
• extend to transcript panel (can be done individually)

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• update changelog

[nathandunn]

@uliboehme I have some questions about obsolete / and partials

• how do you export obsolete and partials in the GFF3?
• can you obsolete a transcript by itself (without the gene?) or is it always the entire gene model?
• when setting a partial for a gene, I'm assuming that any aligning Transcript / Exon / CDS might also pick up the partial?

[uliboehme]

@nathandunn

• Partials genes are shown in the GFF file with
  start_range=.,.
  end_range=.,.
  I have not exported obsolete genes.

• You can obsolete a transcript by itself. I've used this option for genes with alternative transcripts.

• You are right, when setting a partial for a gene, transcript, exon, CDS are also picking up the partial.