added php 5.6 tests
added php 5.6 tests

zyuhel/Embed,daveross/Embed,RJacksonm1/Embed,Soullivaneuh/Embed,davereid/Embed,younes0/Embed,JanPetterMG/Embed,mburtscher/Embed,philrennie/Embed,thenextweb/Embed,oscarotero/Embed