Add back in changes for Bug #2106
Add general use login page.
(cherry picked from commit 3ea91b6ab1b66eb836286f3b5a5f1fba1d67cb9b)
Create isle01.xml
Create isle02.xml
Create isle03.xml
Addressed bugs 2146 and 2147.
Removes depricated files get_session.php and save_session.php; both files replaced with postvar.php on previous commit.
quick fix to coached mode on given model problems
Merge branch 'master' of https://github.com/rptiwari/LaitsV3.git
given model node display issues fixed.  bug 2070, 2054
Addressed bug 2155 for problems 100+.
Merge branch 'master' of https://github.com/rptiwari/LaitsV3.git into bstrong
Create Node disabled in inputs in coached when no node needs to be created for current vertex.
Resolved bug 2411.
Create Node disabled in inputs in coached when no node needs to be created for current vertex.
Resolved bug 2033.
disable bubbles
Fixed division/subtraction issues in calculations panel parsing.  Also, lol.
Fixed equation export issue in author mode
Updated xml code for bug 2155.