Update README.md

fix typo
Merge pull request #34 from jdewit/patch-1

Update README.md
Add swipe property to end and inertiastart events

{
  left    : bool,
  right   : bool,
  up      : bool,
  down    : bool,
  angle   : number (degrees),
  velocity: { x: number (pixels/sec,) y: number (pixels/sec) }
}

A diagonal swipe would have two direction properties be true.
Add swipe demo
Use prevEvent velocity to calculate angle

Snapping and restrictions can lead to an incorrect angle when dx, dy
is used
Add preventDefault and drag axis options

preventDefault
--------------

Returns or sets whether to prevent the browser's default behaviour in
response to pointer events. Can be set to

- true to always prevent
- false to never prevent
- 'auto' to allow interact.js to try to guess what would be best
- null to set to the default ('auto')

drag axis
---------

interact.drag({ axis: 'x' || 'y' || 'xy' })

If set to 'x' or 'y', then the drag event sequence will only happen if
the direction of the first movement of the drag is along the given axis.
Try to drag other element if axis fails on target
Fire '*inertiastart' before calculating trajectory
Merge branch 'drag-axis'

Add preventDefault and drag axis options
Merge branch 'end-event-swipe'
Bump version to 1.0.18
Use ms prefixed pointer event types if necessary
Add interactable to action events
Merge branch 'bugfix-mspointer-event-types'
Do not add functions to Array and Event prototypes
Never add matchesSelector to Element prototype
Fix use of Array#idnexOf in demo
Set inertia status to inactive after final move
Add snap and restrict status to debug object
Improve snap and restrict with zeroResumeDelta