Various fixes, patches and increment to v1.4.0

Fixed issue for use with Foundation 5.
Pull in patches from Zepto.js:

https://github.com/madrobby/zepto/commit/1d94d92223a5ec2edf1fbe18a7a9cc717e7663e4

https://github.com/madrobby/zepto/commit/3649e44f45254180444772738a2cb42d2cc40c74

https://github.com/madrobby/zepto/commit/027a620f1d65d8f4ba7e28f0353b627119022674

https://github.com/madrobby/zepto/commit/323e9da3d6fa79ec11f276eca7d969d8b6fd002f

https://github.com/madrobby/zepto/commit/4eca97161f3dcb37e4fa9e579ce9c1a11bb80ed9

https://github.com/madrobby/zepto/commit/dc023de3f369c89a2b9bc484dec47d63cc61e687

https://github.com/madrobby/zepto/commit/0ecb356472031a43282ac3af4a04a1535253d635

https://github.com/madrobby/zepto/commit/ed0eb876a625946287e90d4911b2b90af43760d3