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