Render tagList only if there are tags

This is useful if you have styling on the ul (padding, border etc.) and don't want it visible if there are no tags.

There doesn't seem to be a case where you'd want the ul persistantly shown, even for styling.
Better syntax
Merge branch 'contextual-tagList' of https://github.com/ojame/react-widgets into patch

Conflicts:
	src/select/select.jsx
release