Merge branch 'master' into JBShort
21/4

- add Log In page
- add log out Function
- fixed some bugs of UserManager
- open the debug mode of CI
- Change the default controller into LogIn
Add new function

- LogIn
- Register
- LogOut
add new function

- LogIn
- LogOut
- Register
Modified UserManager

- add __call and __callStatic
- show error when calling a non-existing method
change MyHome