Zeronet not working on archlinux

### Step 1: Please describe your environment

* ZeroNet version: 0.7.1-1
* Operating system: archlinux x86_64 (linux kernel ver. 5.5.8)
* Web browser: chromium
* Tor status: not available (no config parameter defined in /etc/zeronet.conf)
* Opened port: yes

#### Steps to reproduce:

1. Install package `zeronet` from AUR
2. Start `zeronet.service`
3. Open `127.0.0.1:43110` and observe infinite loading
4. Check `systemctl status zeronet` and observe `UiWSGIHandler error` messages
(full log follows)
```
мар 11 17:05:34 keterzarch systemd[1]: Started Decentralized websites using Bitcoin crypto and the BitTorrent network.
мар 11 17:05:35 keterzarch zeronet[55961]: [17:05:35] - Libsecp256k1 load failed: No module named '_cffi_backend', try to load OpenSSL
мар 11 17:05:35 keterzarch zeronet[55961]: [17:05:35] - OpenSSL loaded: , version: 01010104F in 0.028s
мар 11 17:05:35 keterzarch zeronet[55961]: [17:05:35] - Version: 0.7.0 r4206, Python 3.8.2 (default, Feb 26 2020, 22:21:03)
мар 11 17:05:35 keterzarch zeronet[55961]: [GCC 9.2.1 20200130], Gevent: 1.4.0
мар 11 17:05:35 keterzarch zeronet[55961]: [17:05:35] - Creating FileServer....
мар 11 17:05:35 keterzarch zeronet[55961]: [17:05:35] FileServer Getting random port in range 10000-40000...
мар 11 17:05:35 keterzarch zeronet[55961]: [17:05:35] FileServer Found unused random port: 28060
мар 11 17:05:35 keterzarch zeronet[55961]: [17:05:35] - Creating UiServer....
мар 11 17:05:35 keterzarch zeronet[55961]: [17:05:35] - Removing old SSL certs...
мар 11 17:05:35 keterzarch zeronet[55961]: [17:05:35] - Starting servers....
мар 11 17:05:35 keterzarch zeronet[55961]: [17:05:35] Ui.UiServer --------------------------------------
мар 11 17:05:35 keterzarch zeronet[55961]: [17:05:35] Ui.UiServer Web interface: http://127.0.0.1:43110/
мар 11 17:05:35 keterzarch zeronet[55961]: [17:05:35] Ui.UiServer --------------------------------------
мар 11 17:05:35 keterzarch zeronet[55961]: [17:05:35] TorManager Disabling Tor, because error while accessing Tor proxy at port 127.0.0.1:9050: No connection
мар 11 17:05:37 keterzarch zeronet[55961]: [17:05:37] PeerPortchecker Checking port 28060 (ipv4) using checkPortchecker result: {'ip': '185.145.57.246', 'opened': False} in 2.018s
мар 11 17:05:37 keterzarch zeronet[55961]: [17:05:37] PeerPortchecker Trying to open port using UpnpPunch...
мар 11 17:05:39 keterzarch zeronet[55961]: [17:05:39] PeerPortchecker Checking port 28060 (ipv4) using checkPortchecker result: {'ip': '185.145.57.246', 'opened': False} in 1.862s
мар 11 17:05:39 keterzarch zeronet[55961]: [17:05:39] ConnServer Server port opened ipv4: False, ipv6: None
мар 11 17:06:38 keterzarch zeronet[55961]: [17:06:38] Ui.UiServer Added 127.0.0.1:43110 as allowed host
мар 11 17:06:38 keterzarch zeronet[55961]: [17:06:38] - UiWSGIHandler error: AttributeError: module 'cgi' has no attribute 'parse_qsl' in UiServer.py line 41 > pywsgi.py line 923 > UiServer.py line 98
мар 11 17:06:38 keterzarch zeronet[55961]: [17:06:38] - UiWSGIHandler error: AttributeError: module 'cgi' has no attribute 'parse_qsl' in UiServer.py line 41 > pywsgi.py line 923 > UiServer.py line 98
мар 11 17:12:34 keterzarch zeronet[55961]: [17:12:34] - UiWSGIHandler error: AttributeError: module 'cgi' has no attribute 'parse_qsl' in UiServer.py line 41 > pywsgi.py line 923 > UiServer.py line 98
мар 11 17:12:34 keterzarch zeronet[55961]: [17:12:34] - UiWSGIHandler error: AttributeError: module 'cgi' has no attribute 'parse_qsl' in UiServer.py line 41 > pywsgi.py line 923 > UiServer.py line 98
```

#### Observed Results:

Webpage loading took ages (and it didn't load); error messages seen in zeronet service logs.

#### Expected Results:

I expected to see a zeronet welcome webpage? It redirected me from `/` to `1HeLLo4uzjaLetFx6NH3PMwFP3qbRbTf3D` but it didn't load in any acceptible time.

从第 41 行的 UiServer.py 以及经过 pywsgi.py 的 traceback 开始，然后在 Arch Linux 上启动 zeronet.service 并打开 127.0.0.1:43110，以重现该故障。ZeroNet 欢迎页面能够加载且不再重复出现 UiWSGIHandler 错误，即表示完成。

由索引模型根据 Issue 内容生成。