Added autocompletecombobox with second line.
Support search by description too.
Description can be passed as object as well. Highlight the right substring if description value is different from label.
Merge remote branch 'origin/master' into multiline-autocompletecombobox

Conflicts:
	demo/index.html
CR changes.
Merge pull request #45 from celtra/multiline-autocompletecombobox

Multiline autocompletecombobox