Use HTTP codes constants instead of hardcoding the integer values

Signed-off-by: Jesus Fernandez <jesus.fndz@gmail.com>
Various front end modifications

* Begin using Laravel's blade templates
* Move angular code to it's own file due to blade conflicts
* Create a master layout
* Add logged in/logout navigation changes
* Display a different page when the user is logged in (dashboard)

Signed-off-by: Jesus Fernandez <jesus.fndz@gmail.com>
Merge pull request #71 from jesusOmar/dev

Front end changes