Rearrangement Of Labels & Post Titles

For better documentation purpose, I made some rearrangement to the blog labels & post titles. Some changes are:

1. Add "[Week #]" in front of every blog post for weekly assignments. # stands for week number. For example, "[Week 5] Creativity".
2. Two fixed labels for assignments/project are "Weekly Assignments" and "Project". They are located at the top of the right column.
3. Each post can have multiple labels. For assignment/project posts, other than the two fixed labels, more can be added based on the content of the post. All labels by content can be found at the right column, the second from top.

That's all for now.