fixed "how many days are there in a given month" activity
added "leap year activity" in topic 3
cleaning up /prog directory
moving programs into subdirectories and fixing html files to point to
the right place (lots of links *.ypr files were pointing to veritas
still, doh!  fixed
Merge pull request #22 from peterasujan/gh-pages

Added external page link to top of iframe pages. Did some other styling.
updating original_bjc last topic
merge of original-bjc into berkeley-bjc 
topics still need to be fixed up, though
Merge pull request #23 from peterasujan/gh-pages

Broke the bottom buttons, then fixed them.
Merge branch 'gh-pages' of github.com:beautyjoy/bjc-r into gh-pages
adding link to additional exercises for topic 1, and olympic rings step
remove veritas resources from distributed computing topic
still fixing up topics to not use veritas quizzes and other things
moving byob programs to snap for topics, in progress
point to snap activity not BYOB one
syntax fixes to activities in topic 1
refactoring topic folders
fix second activity!
fix second activity!
Merge branch 'gh-pages' of github.com:beautyjoy/bjc-r into gh-pages

Conflicts:
	cur/programming/intro/snap/make-a-sprite-sing.html
fixing up end-of-topic exercises
Fix broken search link.

Link fixed to use a FERPA-compliant search engine.