Zoom control buttons fire twice on Android 4

[mourner]

Reproducible only with L_DISABLE_3D enabled. Reported in comments to #1694, checking that out...

[mourner]

Damn Android! I hate it. The workaround doesn't completely work, will fix it up today...

[mourner]

Every time Android releases a new minor version, God kills 1000 kittens.

[danderson00]

This nasty double click problem also affects the Blackberry Ripple emulator. A work around is to change line 44 of DomEvent.js to:

} else if (type === 'click' && (L.Browser.android || window.tinyHippos)) {

A one second window seems way too long though!