Overhaul of the tap system so the keyboard does not cover up focused
inputs, correctly bring up the keyboard on text input focus, disabling
focus during scroll, disabling clicks after a hold then scroll,
removing 300ms delay without additional event handlers on each element,
etc. Refactored the tap/click/scroll/activator events for more
testability, along with adding more tests.
Previously I disabled the activation class immediately on a touchmove,
where as the click will still work if you touchstart and touchend
within a few pixels of each other. So visually it may have looked like
the click shouldn't have worked. I just updated it so the use the same
numbers. For example, if you hold down an item and move just 5 pixels,
the item will stay active (before it wouldn't have), and the click will
fire. But at the same time, if you hold down an item, and move a larger
distance, once it realizes that it went farther than 6 pixels it'll not
allow a click to happen, AND it'll not show the item as being active.
Both .active and .activated classes exist within the css now. When a
button/link/item is “active”, the .activated class gets added and
removed. This is so Ionic is not removing any user defined .active
classes, but also so users can use Ionic’s active classes (but not have
to worry about them being removed automatically by Ionic). Styled the
same by default, but easily overridden.
