Edited the ROOT_DIR const value
Corrected comments

Also edited the default route and the absolute path.
Applied a CSS
Added the Member.class.php model
Added the Member controller

With index() and logIn() functions.
Added the logIn view
Added the header include
Deleted the default Welcome controller
Updated README.md
Merge pull request #1 from nhelena/master

Corrected comments (with additional files)