Added two new widgets to the column2 view layout.
Modified the Comment model. The relations method was modfied. So, id is replaced with post_id.
Inside main.php two new parameters were added (tagCloudCount, maxComments).
Added a new component for viewing recent comments (RecentComments). Also, added a new view for this.(recentComments).
Also, a new component for displaing the tags(TagCloud).
The Tag model was modified. Now it has a method called findTagWeights. This method is used to find the tags that are used for every post.