Nothing new added or changed
basic object oriented programming concepts.
Lab: Graphical User Interfaces
Use object oriented design to make a graphical user interface in Qt.
Add a few extra explanations about Qt.

Remove tabs in web navigator project.
Make lab classify consistently with other Python labs.
Lab: Object Oriented Programming
Lab: Graphical User Interfaces
Ignore .sav backup files
Merge pull request #194 from ayr0/sav

Ignore .sav backup files
Merge pull request #193 from abefrandsen/wavelet

Wavelet
added a section on paradigms

Also included a problem that assigns reading for class magic methods.
Split/rearrange labs

Split CorrCovariance and LeastSquares labs into separate folders with
their datasets.

Updates to Vol1.tex and Vol2.tex
updates to volume structure
missing files for english vowels lab
update vol3 tex

Update Volume 3 to include some missing labs
missing /
Merge pull request #195 from ayr0/paradigms

Object oriented programming
remove the need of unicode for a single letter

Make a troublsome unicode letter an image instead that can be included.
  Some platforms are difficult to use latex with unicode.
update Vol1

Remove some old orphaned labs and left over crud.
remove ,
Merge pull request #197 from ayr0/vols

Updates to volume tex files