Fixes for SS 3.0 beta 3
Fixed compatibility issues with ss3.0 rc1
fixed potential issue caused by the from array format changing in 3.0
Fixed strict standards warnings
Fixed strict notice "Only variables should be passed by reference"
Fixed strict notice "Only variables should be passed by reference"
Fixed strict notice caused by SubsiteAdmin not declaring all of the properties for getCMSFields()
Made Subsite::accessible_sites() static
Fixed issue caused when trying to add a domain before saving for the first time
Fixed undefined property ParentID