Update version string to 2.5.3-zzz.2
Update version string to 2.5.3-zzz.2

mcanthony/enyo,beni55/enyo,kustomzone/enyo,bright-sparks/enyo,wikieswan/enyo,soapdog/enyo,enyojs/enyo,soapdog/enyo,bright-sparks/enyo,kustomzone/enyo,enyojs/enyo,PKRoma/enyo,mcanthony/enyo,wikieswan/enyo,beni55/enyo,PKRoma/enyo