j-mutter/Subliminal — pull request #19 by qiffp (2014-05-28 14:30:05+00:00)
Title: Add isValidAndTappble method to SLUIAElement

We use `[x isValid] && [x isTappable]` a bunch, so it seems to make sense to add this

Docs are roughly the same as the docs for `isValidAndVisible`

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