fix broken link

The previous link for "Why selectively enabling JavaScript for certain
sites is bad for your anonymity" was not working.
Merge pull request #715 from notfoss/doc-fix

fix broken link
Merge pull request #714 from Cathryne/master

translated Arch-Linux description to German
Renamed category 'Document collaboration' to 'Office productivity'.
Added Evernote as proprietary.
Added ProtectedText as free.
Added icons and translations.
Renamed translation classes to match new category name (and corresponding JSON stubs).
Added english translation in all .json files.
Added JSON stubs where needed (some were missing, some ware empty like: '<p>--</p>').
Fixed some existing bugs in translations.

Note: ProtectedText.com isn't 'self-hosting' solution.
Merge pull request #712 from ptauser/master

Add ProtectedText in 'Note taking'
update Menu to link to 'Office productivity' section too #712
make protectedtext.com's link https #712
Merge pull request #1 from nylira/master

pulling updates 131029