rollback with changes

fresh start with master
lightened interactive table
fixed timeline link
Med list update, med list ch update, new ch about this book

Updated medication list with current medication data
styles to match with light theme

Updated medication list chapter with current text
current timeline designs, with updated medication data
fixed issue with multiple sliders
fixed issue with sidebars in FF

Added About this Book chapter as ch. 1
updated med list as ch 2
updated table of contents as book/index.html