Update wording from 'Author' to 'Group' in login.html and public-login.html.
Merge branch 'master' of https://github.com/bvds/LaitsV3
Move documentation around.
Query Changed, to get the right problems in "solve a custom problem"
Merge branch 'master' into ritesh
Bug Fix 2403
Handling return value of getInitial using typeof returnvalue==="number"
in case of any checks using getInitial Function
Changes in documentation associated with changing
format of sessions table.
Merge branch 'master' into ritesh
Code review for zero initial value fix:  use test
that initial value is a number.
Also, query in available_problems.php doesn't make sense:  reverted to
original.
Merge branch 'master' into pradeep
Comments on autocreation work in progress:
Used different method of hooking to drawModel.addNode(); see
  colorNodeBorder().
Maybe updateNodeLabel() should be in draw-model since this
  has to do with the drawing canvas?
See comments in autocreateNodes()