Refactor sample search facets
Generate batch qr codes to PDF
Merge branch 'qrcode2'

Conflicts:
	app/views/samples/show.html.erb
	solr/development/data/index/_75.fnm
	solr/development/data/index/_79.fnm
	solr/development/data/index/_79.si
	solr/development/data/index/_79_Lucene41_0.pos
	solr/development/data/index/_86.fnm
	solr/development/data/index/segments.gen
	solr/pids/development/sunspot-solr-development.pid
Bugfix broken show method for sample