History image broken due to new mandatory event param

[basschipper]

Requesting a history image is broken, probably due to a DoorBird firmware upgrade.

Although the api manual states that the history.cgi event param is not mandatory, it however seems like it is!

Test without event param:

➜  ~ curl -u user0001:passwd -v http://192.168.1.9/bha-api/history.cgi\?index\=1
*   Trying 192.168.1.9...
* TCP_NODELAY set
* Connected to 192.168.1.9 (192.168.1.9) port 80 (#0)
* Server auth using Basic with user 'user0001'
> GET /bha-api/history.cgi?index=1 HTTP/1.1
> Host: 192.168.1.9
> Authorization: Basic #hash
> User-Agent: curl/7.50.3
> Accept: */*
>
< HTTP/1.1 204 No Content
< Content-Type: text/plain
< Date: Thu, 28 Dec 2017 19:27:31 GMT
< Server: lighttpd/1.4.45
<
* Curl_http_done: called premature == 0
* Connection #0 to host 192.168.1.9 left intact

Test with event param:

➜  ~ curl -u user0001:passwd -v http://192.168.1.9/bha-api/history.cgi\?index\=1\&event\=doorbell
*   Trying 192.168.1.9...
* TCP_NODELAY set
* Connected to 192.168.1.9 (192.168.1.9) port 80 (#0)
* Server auth using Basic with user 'user0001'
> GET /bha-api/history.cgi?index=1&event=doorbell HTTP/1.1
> Host: 192.168.1.9
> Authorization: Basic #hash
> User-Agent: curl/7.50.3
> Accept: */*
>
< HTTP/1.1 200 OK
< Content-Type: image/jpeg
< Content-Length: 30867
< X-Timestamp: 1514398891
< X-Count: 35
< Date: Thu, 28 Dec 2017 19:33:06 GMT
< Server: lighttpd/1.4.45
<
* Curl_http_done: called premature == 0
* Connection #0 to host 192.168.1.9 left intact

[Klikini]

This is already fixed in the dev branch and the version of PyPi, but I just merged the change into master. 8201428