use tracking instead of non-free network for tinfoil.
use english instead of internal F-Droid jargon for anti-feature names
fix template that says anti-features are separated with ";" (while
categories are still separated with ";")
Fix typo in fbreader
Comments for the rest of the fields are usually one line.
Not sure what the point of this is since the current version is usually
derived from the source code, but I'd like to extend it to cover licenses.
There is no license on it though I'm confident there will be as the Google
Code page says GPLv2 in the sidebar. Native libraries are LGPL and MIT.
Also added a couple of lines to metadata/template.
My previous change introduced all possible fields into the template.
This change puts a one-line comment above each and removes
values (except for some text after Description)
