- Added touchSensitivity Option

You can now specify a percentage of the browsers window height/width
before a swipe gesture will trigger the navigation to the next section
/ scene
Updated now just filters sensitivity once for each direction, either up/down or left/right
Fix indentation issue
Merge remote-tracking branch 'upstream/master'

Conflicts:
	README.md
Merge pull request #198 from gavsim/master

- Added touchSensitivity option