rm openpgp.js as it's not aimed at end users #472
rm posteo.de as they don't release their source code #471 #218
Update nl.json
Merge pull request #473 from lazlolazlolazlo/patch-3

Update nl.json
remove extra line break in intro paragraph
Update french translation
Merge pull request #476 from Kcchouette/patch-1

Update french translation
Merge pull request #475 from grote/master

Clarify Email Services a bit more
remove posteo also from notes section