(#72) - add verifyinstall

I thought the sidebar was looking a little lonely with only three things.  I managed to get verifyinstall passing thanks to https://github.com/apache/couchdb-fauxton/pull/1, so why not add it?

![screenshot 2014-07-09 01 27 32](https://cloud.githubusercontent.com/assets/283842/3521673/e77df278-0742-11e4-9a4a-7f05446037fb.png)