Disable mi_xmlrpc package and move purple package from EXCLUDED_MODULES to EXTRA_EXCLUDED_MODULES

This is a merge from the wheezy package actually.

Thanks: Jon Bonilla <jbonilla@sipwise.com>

debian/rules

@@ -20,12 +20,12 @@
 export DEB_BUILD_OPTIONS:="$(DEB_BUILD_OPTIONS) debug"
 
 # modules not in the "main" kamailio package
-EXCLUDED_MODULES= purple
+EXCLUDED_MODULES= 
 
 # extra modules to skip, because they are not compilable now
 # - regardless if they go to the main kamailio package or to some module package,
 # they will be excluded from compile and install of all
-EXTRA_EXCLUDED_MODULES=bdb dbtext oracle pa iptrtpproxy
+EXTRA_EXCLUDED_MODULES=bdb dbtext oracle pa iptrtpproxy mi_xmlrpc purple
 #EXTRA_EXCLUDED_MODULES=
 
 # possible module directories that can appear in MODULES_SP