New svg icons

Adds new svg icons for Aol, Microsoft, Netlog, VK, VZ Netzwerke, Paypal, VeriSign, and Salesforce.

These are the icons I needed... I'm not sure all of them belong in a general purpose icon set, so I split them up into separate commits. Feel free to cherry-pick the ones that you want.

I'll submit the png files saved from these in a separate pull request, against the master branch.