porting trends panel from elasticsearch to solr
convert one solr query to 2 solr query
add range facet panel
fixing filter query in trends panal
Merge branch 'develop' of https://github.com/tarek-salah/banana into tarek-develop

Conflicts:
	src/config.js

Add trends panel.
Merge branch 'tarek-develop' into develop
Add sorting and Top N limit to terms panel.
Add Delete saved dashboard button in Load menu.
Merge remote-tracking branch 'upstream/develop' into develop
Extended export table functions and fix heatmap module