add good electro station(s)

[guaka]

check some of these:

• https://www.internet-radio.com/stations/electro/
• http://www.live365.com/genres/electro

potential candidates, haven't heard ads on any of these yet

• [ ] http://www.undergroundradio879.com
• [ ] http://www.nsbradio.co.uk
• [ ] http://criminimal.de no ads in 100mins
• [ ] http://www.globalbeats.fm
• [ ] http://www.divaradio.es
• [ ] http://www.nightline-radio.de ++++
• [ ] http://nauticradio.net/technomania