CourseProgress, Smart Resume, Progress Bar, Logout, 404

.Course Progress V.1
.Progress Bar (ProBar) Implemented
.Smart Resume
.Logout function implemented
.404 page added

- TABLES CREATED: user_lecture_progress, files

- MODELS CREATED: user_lecture_progress, files

- SCREENS ADDED : logout, fourOfour
- SCREENS UPDATED: home, course-intro, users