Added the function to get the fields in shared
Ignore all pyc files
Shell script that connects to sas and echoes passwd
Remove useless method definitions
Rename utils to export
Automatically get the headers and data for CSV export
Refactor the way to get header and data in a Mixin
Add Class-based PDF export
Add template-based LaTeX export

The templates are really badly looking because there cannot be
empty lines in tabular in LaTeX, and the {% spaceless %} tag
does not work with LaTeX markup. We should build our own tag for
this.