trash our own brew of xmlrpc, that was all about supporting <nil/>

i.e. marshalling None

plan is to use http://gggeek.github.io/phpxmlrpc/ as a replacement

diff --cc Makefile
Simple merge

diff --cc plcapi.spec
index 670a47f,8846023..5a8ed46
--- 1/plcapi.spec
--- 2/plcapi.spec
+++ b/plcapi.spec
@@@ -52,19 -52,21 +52,16 @@@ Requires: memcached python-memcache
  ### avoid having yum complain about updates, as stuff is moving around
  # plc.d/api
  Conflicts: MyPLC <= 4.3
 -# xmlrpc
 -Requires: php-xmlrpc
  
--# We use psycopg2
--#
--# but we don't need to rebuild it as we depend on distro's packages - baris
--# BuildRequires: postgresql-devel
--
- # Standard xmlrpc.so that ships with PHP does not marshal NULL
- # for building the wsdl interface we used to require PyXML
- # but this has gone with f20 so turning this off for now
- BuildRequires: php-devel
- #BuildRequires: python-simplejson
- Obsoletes: php-xmlrpc
- Provides: php-xmlrpc
 -### # Standard xmlrpc.so that ships with PHP does not marshal NULL
 -### # for building the wsdl interface we used to require PyXML
 -### # but this has gone with f20 so turning this off for now
 -### BuildRequires: php-devel
 -### #BuildRequires: python-simplejson
 -### Obsoletes: php-xmlrpc
 -### Provides: php-xmlrpc
++# standard xmlrpc.so that ships with PHP does not marshal NULL
++# prior to May 2017 we used to ship our own brew of xmlrpc but
++# that does not build anymore on f25
++# So bottom line is:
++# * don't use fedora's php-xmlrpc (no support for marshalling NULL)
++# * don't use our own that is way too old
++# * instead, thanks to Ciro we pull it from
++# https://github.com/gggeek/phpxmlrpc.git
++# Requires: php-xmlrpc
  
  # PostgreSQL and SOAPpy are necessary to run the API server, but not
  # plcsh. Since the only supported method of running the server is via