adding topic design and arrows
fixed merge conflicts
fixed a bug with my merge
fixed merge conflicts
bigger diagram
Merge branch 'master' into animation
header styling
Merge pull request #48 from kdoyne/animation

different header styling
added more style to the topic show page
fixed merge conflicts
Merge pull request #49 from shawnbro/stylePlayground

button deactivation, validation field for new topic
added timeline on topic show page and some styling
Merge pull request #50 from kevinmcalear/css_stuff

Css stuff