small changes
Fixed some typos.
Added a sentence to the Abstract and paper organization paragraph and real exps.
Committing before pull.
Merge branch 'DARS2014' of https://github.com/akanakia/SigmoidTaskAllocation into DARS2014
Fixed some typos using reviewer comments.
Last commit before final submission from lab.
Commit from home with most recent revisions.
Added some color inverted images.
Merge branch 'DARS2014' of https://github.com/akanakia/SigmoidTaskAllocation into DARS2014
Adding some figures and mergning this branch with  master.
fixed merge conflicts.