Changed the titles of the Volumes to match the Jeff's titles
Merge branch 'develop' into titles
rename test.py

Renamed so it won't be mistaken for a temporary file.
separate tests

This will make it easier to see in the log, which file isn't present.
more changes to travis build

Preparation for more extensive tests.
remove un-needed file
add more comprehensive tests

Test to see if have too large files.
known large files
check repo before setting up latex
Merge pull request #667 from ayr0/testpy

Update Travis CI build files
Merge pull request #666 from AZaitzeff/titles

Titles
Revised the cython lab, pages 1,3, & 4. Mainly fixing typos, and smoothing out the presentation.
Removed erroneous section numbers from Volume 4.
Added a separate volume for labs no longer included in Volumes 1 - 4.
Added extra labs to the Travis build.
Merge pull request #670 from insertinterestingnamehere/sections

Removed erroneous section numbers from Volume 4.
rename solutions
create plots.py

Replot the plots to be vector pdfs.
make solutions conform to PEP8
First version of single pixel lab