Started work on the second floating point lab.
Fixed compile error and clarified problem in second float lab.
Further progress on the second floating point lab.
Added more to the floating point lab.
Finished first draft of second floating point lab and added plotting
script.
Merge branch 'master' into float
Added another problem and another plot to the second floating point lab.
Added solutions to second floating point lab.
Added some extra description to second float lab.
Added a short discussion of machine epsilon to second float lab.
Merge pull request #308 from insertinterestingnamehere/float

Float
Added outlines for labs on wrapping C and Fortran.
Merge pull request #310 from insertinterestingnamehere/wrap

Added outlines for labs on wrapping C and Fortran.
Added a section about shortest path for unweighted graphs.
Merge pull request #311 from AZaitzeff/bacon

Added a section about shortest path for unweighted graphs.
Changed the order of the labs to math the curriculum outline
Merge pull request #312 from AZaitzeff/order

Changed the order of the labs to math the curriculum outline
Changed order so that matplotlib lab is in the right place.
Merge pull request #313 from insertinterestingnamehere/hotfix

Changed order so that matplotlib lab is in the right place.