Add config map to note, to save some configurations
Ability to change look n feel
Merge branch 'master' into looknfeel

Conflicts:
	zeppelin-web/app/scripts/controllers/paragraph.js
Handle looknfeel change
Two working themes
Basic key, value selection by drag and drop
Looknfeel selector as bootstrap dropdown button
Merge pull request #144 from NFLabs/looknfeel

Look n feel
implement pivot function
Ability to change aggregation function per value
Multiple same value with different aggregations.
Add avg aggregation.
Take care of piechart
Beautifulize graph option
Fix value data reading
Remove some jshint warnings
Merge branch 'master' into pivot

Conflicts:
	zeppelin-web/app/scripts/controllers/notebook.js
Merge pull request #159 from NFLabs/pivot

Pivot