Various non-Bitcoin groups listed on /events

[TheBlueMatt]

The meetup map appears to include everything tagged Bitcoin, which includes a number of non-Bitcoin groups.

[saivann]

@TheBlueMatt A simple fix could be to exclude non-Bitcoin related meetups could be to ignore those which aren't including "Bitcoin" in their title.

Live preview: http://bitcointest1.us.to/en/events

This change would prevent these events from being displayed currently:

Chicago Ethereum Meetup http://www.meetup.com/Chicago-Ethereum-Meetup/events/196287812/
Ethereum Spain http://www.meetup.com/Ethereum-Spain/events/207650082/
Salt Lake City Crypto Society http://www.meetup.com/Salt-Lake-City-Crypto-Society/events/204756702/
Chattanooga Liberty Community http://www.meetup.com/Chattanooga-Libertarian-Community/events/204150962/
Tacoma Liberty on the Rocks http://www.meetup.com/Tacoma-Liberty-on-the-Rocks/events/202756652/
Silicon Valley Ethereum Meetup http://www.meetup.com/EthereumSiliconValley/events/207123762/
Project SAFE http://www.meetup.com/projectsafemtl/events/207207942/
Project SAFE: San Francisco http://www.meetup.com/Project-SAFE-San-Francisco/events/206913122/
BitDevs NYC http://www.meetup.com/BitDevsNYC/events/206414892/
Ethereum Meetup Wroclaw http://www.meetup.com/Ethereum-Meetup-Wroclaw/events/206374722/
Payments Warsaw http://www.meetup.com/Warsaw-Payments-Meetup/events/204643702/
Boston Counterparty Meetup http://www.meetup.com/Boston-Counterparty-Meetup/events/204788672/
Ripple http://www.meetup.com/xrptrader-com/events/206040452/
Toronto Ethereum Meetup http://www.meetup.com/Toronto-Ethereum-Meetup/events/205763162/
Ethereum London http://www.meetup.com/ethereum/events/205903292/
Bern Silicon Valley IEVS HackLab Group http://www.meetup.com/Bern-Silicon-Valley-HackLab-Tech-Group/events/203673612/
CoinScrum Exeter http://www.meetup.com/CoinScrumExeter/events/201022432/
Ethereum London http://www.meetup.com/ethereum/events/201711162/
Ethereum London http://www.meetup.com/ethereum/events/194948042/
Pittsburgh Ancap Meetup http://www.meetup.com/Pittsburgh-Ancap-Meetup/events/203517992/
Ultra Light Startups http://www.meetup.com/ultralightstartups/events/193827392/
BitDevs NYC http://www.meetup.com/BitDevsNYC/events/207862482/
Ethereum London http://www.meetup.com/ethereum/events/200471792/
Boston Ethereum Enthusiasts http://www.meetup.com/Boston-Ethereum-Enthusiasts/events/205552512/
Ethereum London http://www.meetup.com/ethereum/events/208001122/
Ethereum London http://www.meetup.com/ethereum/events/200471842/
Ethereum London http://www.meetup.com/ethereum/events/188283922/

[saivann]

I have just pushed the little fix, further improvements are welcome if someone feels it can be better.