Fixing time step in introductory problems, removing duplicate nodes in prob 108.
Merge branch 'master' of https://github.com/bvds/LaitsV3
Merge branch 'sachin2'
Further fixes to problem 108.
Merge branch 'master' of https://github.com/bvds/LaitsV3
Adding OK button in the Message Box
Adding OK Button -1
Merge branch 'megha'
Merging Ok button into master
removing irrelevant comments
Older versions of php do not have http_response_code
Add work-around to task_fetcher.php
Update documentation for state
Remove greenhouse1 from list of published problems:
There is no description and the problem is *very* complicated.
Fixing broken problems and adding images
Merge branch 'master' into sachin2
Code review for author mode fixes.
Changes are mostly formatting and removing cruft.
Still need to fix handlers for equation and initial value.
Still need to clean up initialControlSettings().