fixed vect, vect2 question in rprog
break ground on rprog alt version for email support
add notify option at end of all rprog alt lessons
update hardcoded file paths in rprog alt course
update readme
update readme
small tweaks to lapply and sapply lesson
tweaks to vapply and tapply lesson
tweaks to looking at data lesson
tweaks to simulation lesson
slight tweaks to dates and times lesson
Merge branch 'master' into devel
bring alt up to speed with original with small update
bring rprog up to speed with tweaks to rprog alt