available problems now returns session_id,Bug 2418, query fixed, needs to
be reviewed, we also pass session_id to dragoon now
Merge branch 'master' into ritesh
changes in math-probs page
task fetcher now works with sessionId for solving custom problems
Merge branch 'master' into ritesh
Merge branch 'master' into ritesh
Merge branch 'master' into ritesh
share bit check for model completeness and a root node
log message added for graph cycle in initializeSolution function
Merge branch 'master' into sachin
share bit switch, modified for empty model, avoided infinite loop and necessary changes
code changes to show message for self referencing in accumulator
New JSON problems - energy balance + first two homeostasis problems
Blood glucose poblems
Merge branch 'master' into ritesh
Fixed bug where auto-corrected equations weren't updating model properly;  added "/" indicator for function nodes
Improved descriptions and fixed task names in physiology problems.
Added missing initial value to problem description.
Fixed typo: glycagon --> glucagon
bug number 2439
Merge branch 'master' into vallabh