Update the locale version to 1.5a.

This should fix some run time errors about missing entities.

mail/base/content/contents.rdf

@@ -13,7 +13,7 @@
         chrome:displayName="Messenger"
         chrome:author="mozilla.org"
         chrome:name="messenger"
-        chrome:localeVersion="1.4b"
+        chrome:localeVersion="1.5a"
         chrome:skinVersion="1.2">
   </RDF:Description>
 

mail/base/content/help.rdf

@@ -10,6 +10,6 @@
         chrome:displayName="Mozilla Help Viewer"
         chrome:author="netscape.com"
         chrome:name="help"
-        chrome:localeVersion="1.4b">
+        chrome:localeVersion="1.5a">
   </RDF:Description> 
 </RDF:RDF>

mail/base/content/navigator.rdf

@@ -12,7 +12,7 @@
         chrome:displayName="Navigator"
         chrome:author="mozilla.org"
         chrome:name="navigator"
-        chrome:localeVersion="1.4b"
+        chrome:localeVersion="1.5a"
         chrome:skinVersion="1.2">
   </RDF:Description>