LP Bugs YUI module naming conventions

[Edwin Grubbs]

Please fix the following inconsistencies between module directories,
module names, and namespaces as described in the JavascriptReviewNotes.

https://dev.launchpad.net/JavaScriptReviewNotes#Naming%20Javascript%20Modules%20and%20Namespaces

Also, please run ./bin/jslint on the modified javascript files.

c/l/javascript/bugs/subscriber.js:
    YUI.add('lp.subscriber', function(Y) {
        Y.namespace('lp');
        Y.lp.Subscription = Subscription;
        Y.lp.Subscriber = Subscriber;

    For example, you should change the above code to:
        YUI.add('bugs.subscriber', function(Y) {
            var module = Y.namespace('bugs.subscriber');
            module.Subscription = function() {...
            module.Subscriber = function() {...

c/l/javascript/bugs/filebug-dupefinder.js:
    YUI.add('bugs.dupe_finder', function(Y) {
        var bugs = Y.namespace('bugs');
        Y.bugs.setup_dupes = function() {
        Y.bugs.setup_dupe_finder = function() {

c/l/javascript/bugs/bug_tags_entry.js:
    YUI.add('bugs.bug_tags_entry', function(Y) {
        var bugs = Y.namespace('bugs');

c/l/javascript/bugs/bugtask-index.js:
    YUI.add('bugs.bugtask_index', function(Y) {
        var bugs = Y.namespace('bugs');
        Y.bugs.portlet = new PortletTarget();
        Y.bugs.setup_bugtask_index = function() {
        Y.bugs.load_subscribers_portlet = function(

c/l/javascript/bugs/offical_bug_tags.js:
    YUI.add('bugs.official_bug_tag_management', function(Y) {
        var bugs = Y.namespace('bugs');

[Ursula Junque (ursinha)]

Fixed in stable r11027 <http://bazaar.launchpad.net/~launchpad-pqm/launchpad/stable/revision/11027>.