saving the users after creating them at seed
color + brian's grammar
fixes + colorize flu_trend (LESSON)
fixing LESSON flu_trend up until build section
more fixes to the flu_trend lesson
finished cleaning flu_trend LESSON
colorizing the intro for flu_trend
some indent change
Merge pull request #741 from teamleada/tristan_fix_old_seeds_2

Tristan fix old seeds 2