updated guiding notes of lab6, small style adjustments
added slides of lab 6
added http-server standalone for those who cannot find it
updated slides and guiding notes with aditional EHealthResource example
updated lab5 slides and README
guiding notes+slides+assignment in lab7
minor updates to guiding note of lab7
Merge commit 'f6809b489e486d4d9465d21f86e01ff0e3401c18'