Add heatmap for testing on bike ride data
Fixed Multiseries missing values and Added updates to heatmap
Merge remote-tracking branch 'upstream/develop' into develop

Conflicts:
	src/app/panels/bettermap/module.js
	src/app/panels/multiseries/module.js
Added colors configuration and fix display bug in heatmap
Fix intensity ratios in heatmap
Merge remote-tracking branch 'upstream/develop' into develop
Extended export table functions and fix heatmap module
House keeping.
- Delete logstash-conf folder
- Rename fix-cors-issue folder to enable-cors
- Rename solr-4.4.0 and solr-4.5.0 to banana-int-solr-4.4 and banana-int-4.5
- Create a new folder, resources, and move enable-cors, banana-int-solr-4.4, and banana-int-solr-4.5 folders into it.
Merge remote-tracking branch 'upstream/develop' into develop
Fixed heatmap tooltip bugs
Changed rotate icon and Fixed tooltip issues
Change kibana-int to banana-int, and kibana_index to banana_index in all files.
Rename kibana-int folders to banana-int folders.
Add comments and edit Grunt files that it is not completed yet.
Change title "Banana 3" to "Banana"
Remove Queries option from Queries tab in panel's Settings.
Edit <tip> directive to support data-placement attribute (i.e. popup position).
Change terms panel's Mode dropdown tooltip to popup at the right position.
Edit histogram panel description.
Edit terms panel in-product documentation.
Clean up and remove elasticsearch variables.
Edit in-product documentation and clean up panels.
Disable multiseries panel in config.js.