2013-spring-cleanup: Cleanup "Redmine" and "Issues" slides.
2013-spring-cleanup: Remove "liste-irc-comunitate".
2013-spring-cleanup: Merge "makefile" slides.
2013-spring-cleanup: Remove "Motivatie*" slides.
2013-spring-cleanup: Merge "OOP" slides.
2013-spring-cleanup: Merge all projects.
2013-spring-cleanup: Remove obsolete PyGTK course.
2013-spring-cleanup: Remove latest obsolete courses.
2013-spring-cleanup: Have a special dir for slides.
2013-spring-cleanup: Remove other obsolete slides.