add term start date to courses table
add datepicker to view
store start date when new course is created
add controller to change course start date
layout
update db queries to limit by term_start_date
show default with a placeholder
update another sql query to limit by term start date
uneeded param
minimize the datepicker
manually merge my changes to the query in listassessments
allow changing course start date when rebuilding a course
trial move of submodule
move
moved parsons and codelens modules
Merge pull request #244 from isaacdontjelindell/currentterm-issue-227

Add "term" start date to courses
**WARNING** This is a big commit that is going to BREAK YOUR CONFIG File if you have been working on your own book.  You will want to change the value of your html_static_path variable.  See overview/conf.py for what you should make yours match.
Merge branch 'master' of github.com:bnmnetp/runestone
Add important notice about submodules moving.
Add notice about contributing $$
fix link to gittip page