Add participant logos

- MariaDB
- Availity
- Synnefo
- Fedora
- CentOS

img/participants.txt

@@ -8,8 +8,10 @@ AppDynamics,http://www.appdynamics.com/,commons-logos/AppDynamics.png
 Architech,http://www.architech.ca/,commons-logos/architech.png
 Ausnimbus,https://www.ausnimbus.com.au/,commons-logos/ausnimbus.png
 Autonomic Resources,http://autonomicresources.com,commons-logos/arcwrx.png
+Availity,http://www.availity.com/,commons-logos/availity.png
 Black Mesh,http://www.blackmesh.com/,commons-logos/blackmesh.png
 CA Technologies,http://www.ca.com/us/default.aspx,commons-logos/catechnologies.svg
+CentOS,https://www.centos.org/,commons-logos/centos.png
 Chuanhow,http://www.chuanhow.com,commons-logos/chuanhow.png
 Cinglevue,http://cinglevue.com/,commons-logos/cinglevue.png
 Cisco,http://www.cisco.com,commons-logos/Cisco.svg
@@ -22,12 +24,14 @@ Docker,https://www.docker.com/,commons-logos/docker_logo.svg
 EBRC,http://www.ebrc.com/,commons-logos/ebrc.png
 Epidata Consulting,http://www.epidataconsulting.com/,commons-logos/epidata.png
 Feed Henry,http://www.feedhenry.com/,commons-logos/FeedHenry.png
+Fedora,http://getfedora.org/,commons-logos/fedora.png
 FICO,http://www.fico.com/en/,commons-logos/fico.svg
 Getupcloud,https://getupcloud.com/index_en.html,commons-logos/getupcloud.png
 Grid Dynamics,http://www.griddynamics.com/,commons-logos/Grid_Dynamics.png
 Hortonworks,http://hortonworks.com/,commons-logos/hortonworks.png
 Ironio,http://www.iron.io/,commons-logos/ironio-logo.svg
 Kangaroot,http://kangaroot.net,commons-logos/kangaroot.png
+MariaDB,https://mariadb.com/,commons-logos/mariadb.png
 Mesospere,https://mesosphere.com/,commons-logos/mesosphere.png
 Miracle.dk,http://miracle.dk/,commons-logos/MiracleBlack.png
 Middleware360,http://www.middleware360.com/,commons-logos/middleware360.png
@@ -51,11 +55,13 @@ Sendgrid,http://sendgrid.com,commons-logos/sendgrid_logo.png
 ShadowSoft,http://www.shadow-soft.com/,commons-logos/shadowsoft.png
 Shippable,http://www.shippable.com/,commons-logos/shippable_logo.png
 Smals,https://www.smals.be/,commons-logos/Smals.png
+Synnefo,http://synnefo.forsythe.com/,commons-logos/synnefo.png
 T Systems,http://www.t-systems.com/,commons-logos/Tsystem.png
 Telstra,https://www.telstra.com.au,commons-logos/Telstra.svg
 TicketFly,http://www.ticketfly.com,commons-logos/ticketfly.png
 Vizuri,http://vizuri.com/,commons-logos/vizuri.png
 Web Semantics,http://websemantics.ca,commons-logos/websemantics.png
+WiPro,http://wipro.com/,commons-logos/wipro.png
 Worldline,http://worldline.com/en-us/home.html,commons-logos/worldline.png
 Zabbix,http://www.zabbix.com,commons-logos/zabbix.png
 Zend,http://www.zend.com/,commons-logos/zend.png