Separate plugins from masonite.js.

Move console.log helper, jquery.widowfix, jquery.easing and jquery.masonry to plugins.js; add jshint options to masonite.js.
Add 'use strict'.
Indention.
Use '!==' to compare with ''.
Use '===' to compare with '0'.
Update JSHint options.
Move the various "helper"-functions into the anonymous function.
Add window and undefined as local variables to the self-executing anonymous function.
Remove empty line.
More whitespace.
Improve infinite-scroll's "custom trigger"-button :hover-styles.
More JSHint-ing, whitespace and indention.

Update masonite.js URL.