Pulling to another branch the changes in the front-end.

Uploading what I had so far:
- Some of the changes in pages that I did for the presentation and weren't yet in the master branch.
- Changing the "selected" menu icon according to the current page.
- Login implemented using the ASP login tag. Also, now it has a "Remember me?" checkbox.
- Background awesomeness: repeating pattern on scrolldown with the static cat on top. Also, resize the browser window for more cat awesomeness.