Fix Full Screen launching in Android Chrome

The click trampoline added for IE prevents Chrome for Android from being
able to launch Full Screen mode with the default parameters for
`ScaleManger#startFullScreen`. (The desktop version of Chrome is not
affected.)

This fix adds an additional compatibility settings (`clickTrampoline`)
that can be used to configure when such is used. By default the
'when-not-mouse' mode is only enabled for Desktop browsers, where the
primary input is ubquitously a mouse.

There are no known breaking compatibility changes - the Full Screen should
be initiatable in Chrome for Android as it was in 2.1.x. The default
Android browser does not support Full Screen.
Merge pull request #1420 from pnstickne/wip-1406

Fix Full Screen launching in Android Chrome