Updated Raphael Scatter to have separate x and y ticks. Still buggy.

Reverted to pre-Google visualization scatter plot view to use Raphael.
demo of details table in scatter plot
initial script for generating 'real' data :P
Merge remote-tracking branch 'origin/fake_effort_data' into IDOC_coach_reports
merged in 'real' data generator, but isn't being selected by default query.  Fix necessary :(
fixed effort and pct_mastery to be aboslute (to total available exercises/videos), not relative (to those the student touched)
select any arbitrary topic node to get exercises from.  get google tooltip working offline.
adding timestamps.  See a bug in exercise completion logic (too many uncompleted, too many exercises touched). Next: sample total # of exercise attempts (based on effort and time_in_program), then distribute according to speed_of_learning (those who learn slower take more attempts to complete, also have a greater probability of not completing)
enable teachers to be restricted to a group (did not implement changes to manage_users view)
get x/y axes via url or querystring. add 'loading' status. common api_views and views code for querying data.
making base visualizaiton template, and specifying props for implementing
adding a 'chart_div' parameter, to allow more than one visualization per page.
skeleton student view, works with login, linked from name (with active pointer)
adding 'repeatblock' templatetag, moving static files to own directory, completed skeleton of student view
Merge branch 'IDOC_coach_reports' of git://github.com/bcipolli/ka-lite into IDOC_coach_reports
landing page shows default inclusion of users (either group or facility), adding back navbar and axis labels to scatterplot, copying over to timeline plot
Incremental changes to raphael scatter.
Merge pull request #1 from jamalex/IDOC_coach_reports

Fixes for CSRF and user management page
Merge branch 'IDOC_coach_reports' of git://github.com/bcipolli/ka-lite into IDOC_coach_reports
Merge branch 'IDOC_coach_reports' of git://github.com/rtibbles/ka-lite into IDOC_coach_reports

Conflicts:
	kalite/templates/coachreports/scatter_view.html