Tor Always Mode Sometimes Hangs

### Step 1: Please describe your environment

* ZeroNet version: 0.6.0 rev3161
* Operating system: Mac OS Sierra
* Web browser: Tor Browser
* Tor status: always
* Opened port: no
* Special configuration: none

### Step 2: Describe the problem:
Sometimes I get this message repeatedly when I look at Tor in terminal
```
[warn] Socks version -125 not recognized. (Tor is not an http proxy.)
```
When this happens, ZeroNet begins to hang and stops updating sites. If I look at the stats page I usually see a bunch of nodes where connection status under `open` is `n/a`. Some nodes have a larger ping than normal, but eventually most nodes end up with a `n/a` state after a while.

#### Steps to reproduce:
Sometimes this happens the moment I start ZeroNet, while other times it happens after a while.
It seems to happen randomly, and I've experienced this problem in earlier versions.
When I try to restart ZeroNet after this happens to fix it, the same problem usually happens again.