Small edits to fft algorithm lab and added a solutions file.
Made changes to shorten the fft algorithm lab.  Added fft labs to Vol2.
Added solution files to both 1d fft labs.
Merge branch 'develop' into fft
change PyQt4 to PySide

I used PyQt4 initially because that is what I had installed.  After
looking at both PySide and PyQt4, I decided that PySide was the better
option (and it is included in many of the major python distributions by
default).
remove unused files
Merge pull request #267 from ayr0/cleanup

remove unused files
Merge pull request #268 from ayr0/pyside

change PyQt4 to PySide
commit missing file

Needed for one of the problems.
Merge pull request #269 from ayr0/hotfix-stdlib

commit missing file
Merge pull request #256 from jhendr/fft

FFT
Added the Kevin Bacon Lab. Still needs solutions
Merge branch 'develop' into test
Merge pull request #271 from AZaitzeff/test

Kevin Bacon Lab
Minor change
Merge pull request #272 from AZaitzeff/minor

Minor change
Minor change
Merge pull request #273 from AZaitzeff/minor

Minor change
Added file and minor change
Merge pull request #274 from AZaitzeff/minor

Added file and minor change