My first commit to the project

Hello Dale, I've just committed my changes. I hope that everything will work. I can not get used to git yet and it takes me some time to do commits and so on... 

I have done next things:

- updated pvPnController, PvPn model, and pnPv views
- updated layout and some css
- added downloading a PDF report file of a part being viewed (on the right side there is Save As PDF menu item). This is just test for now. I am not sure yet that wkhtmltopdf-i386 will work on FreeBSD. Perhaps, I will find another tool
- added PvPod model that is used to get descriptions for User1-User10 fields in table PvPn

At this moment, I didn't yet paid much time to appearance of the view. We have to compose a list of fields that will not have to be displayed on the view form. Perhaps, some sections move to tabs, and so on.

If something will not work, just give me a notice.

Thanks