Revert "Remove fastclick.js file and make it ignored by git"

This reverts commit 47cc48f2aaca8bbad3f9989a0813a16da4b22454.
Update fastclick to 1.0.3
Add hack for iOS8 and slow touch event
Merge pull request #1877 from geoadmin/dev_revert

Re-add fastclick uncompressed and fix #1854