Bug 1388412 - update devtools addon install rdf to use toolkit em:id;r=ochameau

MozReview-Commit-ID: 1sOGNNCfiOh

--HG--
extra : rebase_source : ef54403282146aa0b6936ef4c531a3cebf51f1d5

devtools/install.rdf

@@ -9,18 +9,19 @@
      xmlns:em="http://www.mozilla.org/2004/em-rdf#">
   <Description about="urn:mozilla:install-manifest"
                em:id="devtools@mozilla.org"
-               em:name="Developer Tools (local version)"
-               em:description="Add-on to load DevTools from local sources and easily reload them with Ctrl+Alt+r shortcut"
+               em:name="Developer Tools"
+               em:description="System-addon for Firefox DevTools"
                em:version="44.0a1"
                em:type="2"
                em:creator="Mozilla">
 
     <em:bootstrap>true</em:bootstrap>
     <em:multiprocessCompatible>true</em:multiprocessCompatible>
+    <!-- Valid for all toolkit applications -->
     <em:targetApplication>
       <Description>
-        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
-        <em:minVersion>44.0a1</em:minVersion>
+        <em:id>toolkit@mozilla.org</em:id>
+        <em:minVersion>57.0a1</em:minVersion>
         <em:maxVersion>*</em:maxVersion>
       </Description>
     </em:targetApplication>