Update clients.html with new url for Electrum
Merge pull request #55 from ecdsa/master

update url for Electrum website
Version 0.8.0
Merge pull request #56 from gavinandresen/master

Update download version to 0.8.0
Not v0.8.8 yet
Update MultiBit screenshot.
Merge pull request #57 from mikehearn/new-multbit-screenshot

Update MultiBit screenshot.
Fix link to osx download
Add gpg key for Andreas Schildbach (8B877A60).
Merge pull request #58 from schildbach/gpgkey-schildbach

Add gpg key for Andreas Schildbach (8B877A60).
Merge remote branch 'upstream/master'