Maintenance

The source of a used GIF added to README.
The source of the used Fonts added to README.
Another used tool was added to the "Powered by" section.
More translation work was done and the technique used to do the manual Nmap-scans was changed to include a loading animation.
A speedtest has been added to the detailed view of the "Internet" device. This is also located under the "Nmap" tab.

README.md

@@ -44,6 +44,7 @@ In charge of:
     described
   - Store the information in the DB
   - Report the changes detected by e-mail
+  - Optional speedtest for Device "Internet"
 
   | ![Report 1][report1] | ![Report 2][report2] |
   | -------------------- | -------------------- |
@@ -61,6 +62,7 @@ A web frontal that allows:
     - Down alerts
     - IP's
     - manuel nmap scans
+    - Optional speedtest for Device "Internet"
     - ...
 
   | ![Screen 1][screen1] | ![Screen 2][screen2] |
@@ -114,26 +116,33 @@ Linux distributions.
 ### [Versions History](docs/VERSIONS_HISTORY.md)
 
 ### Powered by:
-  | Product      | Objetive                               |
-  | ------------ | -------------------------------------- |
-  | Python       | Programming language for the Back      |
-  | PHP          | Programming language for the Front-end |
-  | JavaScript   | Programming language for the Front-end |
-  | Bootstrap    | Front-end framework                    |
-  | Admin.LTE    | Bootstrap template                     |
-  | FullCalendar | Calendar component                     |
-  | Sqlite       | DB engine                              |
-  | Lighttpd     | Webserver                              |
-  | arp-scan     | Scan network using arp commands        |
-  | Pi.hole      | DNS Server with Ad-block               |
-  | dnsmasq      | DHCP Server                            |
-  | nmap         | Network Scanner                        |
-  | zip          | Filecompression Tool                   |
+  | Product       | Objetive                                                |
+  | ------------- | ------------------------------------------------------- |
+  | Python        | Programming language for the Back                       |
+  | PHP           | Programming language for the Front-end                  |
+  | JavaScript    | Programming language for the Front-end                  |
+  | Bootstrap     | Front-end framework                                     |
+  | Admin.LTE     | Bootstrap template                                      |
+  | FullCalendar  | Calendar component                                      |
+  | Sqlite        | DB engine                                               |
+  | Lighttpd      | Webserver                                               |
+  | arp-scan      | Scan network using arp commands                         |
+  | Pi.hole       | DNS Server with Ad-block                                |
+  | dnsmasq       | DHCP Server                                             |
+  | nmap          | Network Scanner                                         |
+  | zip           | Filecompression Tool                                    |
+  | speedtest-cli | Python SpeedTest https://github.com/sivel/speedtest-cli |
 
 ### License
   GPL 3.0
   [Read more here](LICENSE.txt)
 
+  Source of the animated GIF (Loading Animation)
+  https://commons.wikimedia.org/wiki/File:Loading_Animation.gif
+  
+  Source of the selfhosted Fonts
+  https://github.com/adobe-fonts/source-sans
+
 ### Contact
   pi.alert.application@gmail.com