giving the general UI a facelift:

* better typography standards, choices, and consistency
* clearer colors - complete is separated from grade colors
* template class/markup syncing
* template copy updates
* adding new UI conventions - visual section and well elements
* adding a bit of flash in the pan - scale transitions to show active/focused sections
revising grid for peer assessment general feedback output
adding visual emphasis to self assessment in grade report output
visually downplaying step/form instructions
resolving issue where labels couldn't be selected in forms
syncs label selected color with LMS/other selected UI form field states
syncing up styling for collapse/expand toggle links on step header UI
adding step-based messages archetypes and specific cases to templates
removing 'please' from UI copy/instructions
placing peer assessment-based template in its right place
adding problem-wide UI for messages (along with placeholder/example messages for most occasions)
revising styling/placement of 'inline' error messages on save/submission states
Fixing unit tests
revising peer assessment step's state-based template markup
porting static overall message cases/markup to static/html directory
uncommenting _shame.scss partial
reverting _developer.scss partial to not clobber xblock workbench UI
syncing _shame.scss partial overrides with new styling rules
nudging step status UI for alignment's sake
adjusting typographical scale