modified SimulationMainWindow1D
Arya second contribution
Arya third contribution
added sheng module
Merge pull request #2 from afarahi/feature

added sheng module
yuqing contribution
Arya modification
Arya Fourth Contribution
added new module
added new module
yuqing plot 1d
Arya:delay bug in realization of exact solution is fixed
yuqing: mouse track point
Arya: few modifications (realization time step added)
Merge remote-tracking branch 'origin/master' into physheng
added news module
added news module
Arya: a bug in RndNoise is fixed
Merge pull request #4 from afarahi/physheng

Physheng
Arya: some modification in 2D simulation