Minor changes

This is a very interesting module, and one that I want to explore further in some of my own stuff. To that end, here is a small (?) patch, with no major major changes.

Note that I am hesitant to call this a bug report, because it isn't really. In fact, I may have torn more things up working on this than I fixed.

The following patch:
- fixes some capitalization and end stop issues on comments.
- adds "wiki/" on most of the Wikipedia links to keep Wikipedia from automatically directing to the correct entry.
- makes some minor changes to help text verbiage, etc.

Note that -- although I didn't spend a lot of time tracking this down as I didn't have much time this morning -- I can't get the image stuff to work. But, I couldn't get the images to display pre-patch either, so I'm not positive I did it, but I could have.

As always, if this patch isn't helpful in some way, please won't fix at your leisure.