Major bugs/errors

[DominicRossillo]

Major:

1. My Account: when changing your password it does not enforce the restrictions for passwords but on log in it does so you can change your password to "a" and then go to log in and get the "Passwords must contain at least one upper case letter, one lower case letter and one number" error
2. On the join class page you can join the same class multiple times. and it shows you under the roster multiple times.
3. On view text page: if you double click a word to get it defined and it has a accent on a letter, it just picks up the letters up to the accented letter
4. For create class we may want to require unique class name ie: encourage having class sections / years/ semesters.so if a teacher has 3 Spanish 101 classes with different students its organized but you can easily distinguish the class when you view classes I teach
5. clicking on "View Text" on the view_statistics.php page results in a "The requested URL /view_text was not found on this server.
   " error.
6. On my Account: if you edit account details you can change your email to something that is already in use by some other account. same goes for first last name
   admin
7. should have a function on each page that requires you to login in order for it to load. if you put in a url that you normally would need to be loged in to access you get sql errors and to a user this may be confusing.