Add support for disabling targets from the local project override file. (#1077)

Author: bkosborne

phing/build.xml

@@ -71,9 +71,10 @@
   <!-- Contains Drupal SimpleSAMLphp tasks. -->
   <import file="${phing.dir}/tasks/simplesamlphp.xml"/>
 
-  <!-- Disable targets defined in the disable-targets array in project.yml. -->
+  <!-- Disable targets defined in the disable-targets array in project.yml or project.local.yml. -->
   <!-- This must be executed after all targets are defined. -->
   <disabletargets file="${blt.config-files.project}" property="disable-targets"/>
+  <disabletargets file="${blt.config-files.local}" property="disable-targets"/>
 
   <target name="list" hidden="true">
     <exec dir="${repo.root}" command="cat ${blt.root}/scripts/blt/ascii-art.txt" logoutput="true" passthru="true" checkreturn="false"/>