Add showZoomControl, showHomeControl and showFullPageControl options to be able to hide specific controls. See #210
Add missing doc for buttons.
Set the rotate buttons to viewer.rotate(Left/Right)Button for coherence with other buttons.
Update tests.
Improve documentation.
Merge pull request #376 from avandecreme/hide-controls

Add showZoomControl, showHomeControl and showFullPageControl options to ...
Changelog for #376 and spelling fix