Course 6_mgf Sifter corrections
Merge branch 'master' of https://github.com/rhastings-epigeum/EpigeumDev
Merge branch 'master' of https://github.com/rhastings-epigeum/EpigeumDev
Built Course 8_dyt navigation, Intro screen and Chapter 1 (screens 1_10 to 1_40)
Merge branch 'master' of https://github.com/rhastings-epigeum/EpigeumDev