Updated ManyMinima.pdf according to "Introduction and Tutorial"
Added a curve fitting problem
Fixed an error in scipytex.opt that prevented compiling
Finished the curve fitting section
Added a plot of the heating data
Add a root finding section
Added just a few finishing touches, should be Finished
Merge pull request #420 from forrestglines/scipyopt

Updated ManyMinima.pdf according to "Introduction and Tutorial"