Added a little bit of bootstrap.

Not much, just their CSS on buttons and HTML forms.
Added some bootstrap and began to style other pages.

Sign in, sign up, and recover forgotten passwords.
A few changes to the main page, also.
Wrote a short write-up for the recover page.
Fixing the information alert on the recover page.
Fixing some padding on the signin, recover, and signup.
Fixing a typo.
Only making the recover form bigger
Placing the home link before other links.