Drawers: open gesture defaults to dragging from content edge
GroupedList: fixed issue where header sometimes disappears
List: fixed issue where old typical item renderer may remain invisible
TextInput: fixes for focus and selection. added clearFocus() so that focus can be cleared if the TextInput isn't managed by the focus manger (such as in a NumericStepper).
NumericStepper: fix for giving focus to the TextInput
Merge branch 'master' of https://github.com/joshtynjala/feathers