Match PHP5 implementation of SoapVar class

Summary: Get rid of NativeData since PHP5 treats this as a glorified
stdClass object.

Closes #1515

Reviewed By: @JoelMarcey

Differential Revision: D1696892

Signature: t1:1696892:1416934277:ddaa1943a6e2c6a475fb55c1523a073f890365be
Fix repo-schema again

Summary: Actually use the command, rather than the variable name

Reviewed By: @edwinsmith

Differential Revision: D1710008

Signature: t1:1710008:1417456845:d34d21f651f2b984f54472709701c869c6a58bc6