Merge pull request #7 from lkc/pdf-checks

Add simple PDF checks and make page rendering a warning for the test that fails
Add support for images w/o QPixmap conversion

This makes them work without a GUI
Add font style unit tests
Colorize unit tests and run all instead of stopping on first failure
Punt on travis tests for 15 and 17
Add HTML unit test
Be explicit when specifying svgs similar to html

This removes the big regexp check.
Update license and add headers to all files