[Build Tools] Update RegExps in packaging for npm.

[davide]

Fixes npm packaging for components api, site (#1878) and transition.

This patch is re-implementation of fixes done in pull request 1156 (#1156) following some concerns raised in #1878.

[jlukic]

What modules have you checked the modification against?

I know specifically some modules use a different syntax for extending jquery which could have issues with the regex

[davide]

I went through all repos (generated by gulp release) that had an index.js file in there, comparing the files before and after the regex replacements.
The new RegExp/replacement retains whatever assignment is already in place (which was the case in the site and api modules):

$.api = $.fn.api = function(parameters) {

turns into:

var _module = module;
$.api = module.exports = function(parameters) {

[jlukic]

I'll release a patch tomorrow

[jlukic]

@davide Do you think it makes sense to leave UI-Transition out of dependencies since this is not actually required by each modules' index.js, or should it be left in?

[jlukic]

Tagging on npm as we speak, let me know if that resolves issues.