Add more speakers to PGD EU site

[jenlgray]

• Martijn Walraven - Martijn Walraven is a core developer at Meteor Development Group, where he works on mobile support for the Meteor JavaScript app platform, including the Cordova integration. He is also the creator of Meteor iOS, which integrates native iOS apps with Meteor.

• Brett Rudd - Brett is a cordova committer and also the development team lead for Adobe’s PhoneGap Build. PhoneGap Build allows you to create mobile apps using HTML, CSS, and JavaScript - and then easily compile them for multiple platforms in the cloud. It has built over 2 million apps and assists developers during prototyping, development and all the way through signing and packaging for App Store submittal. Brett has no hobbies.

• Bruce Lefebvre - same as the US site
• Eddy Verbruggen - Cordova plugins hacker, Telerik
  Eddy is the author of many PhoneGap plugins. Over the past few years, he created popular plugins such as SocialSharing, Calendar, and Toast. What started as an open source hobby resulted in him teaming up with Telerik with the goal to increase the quality of the Cordova plugin ecosystem. These days, Eddy is the maintainer of the Telerik Verified Plugins Marketplace at http://plugins.telerik.com.

When Eddy is not hacking Cordova or NativeScript plugins, he is working as a cofounder of Combidesk, a Dutch start-up that aims at making connecting cloud API's so easy your mom could do it.

@EddyVerbruggen

• Ryan J Salva - same from the US site
• Nick Van Weerdenburg - same from the US site
• Denis Radin - same from the old 2015 EU site