Merge branch 'better-settings'
Add 'context' and 'ignoreFrom' dr.js comments
Update docs
Bump version to 1.0.16
Revert "Fix interaction start distance condition"

This reverts commit 7ba7d17e51e5bd02b78a3128c5b5376e7998fb78.

Fixes issue with iOS browsers
Closes #22
Fix interaction start distance condition
Re-minify
Regenerate docs
Make a new Interactable for each selector+context

The context should only be set when creating the Interactable:
interact('.drag', { context: element });

The context method only returns the context of the Interactable. It
doesn't change it.