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
Updating YouTube link for new video.
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.
Query Changed, to get the right problems in "solve a custom problem"
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.
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 'ritesh'
Send the model task to the solutions table.
Update the solutions table using the SQL query:
  UPDATE solutions SET solution_graph = SUBSTRING(solution_graph, 9, LENGTH(solution_graph)-9)
     WHERE solution_graph REGEXP '^{"task":';
Merge branch 'master' into jingxian2
Also, fixed bug with existence test for shareBit in
saveProblem().