Bring most mimetypes in line with XDG specifications.  The following are not fully verified in source as of this commit due to ubiquity: html, empty, info, make, man, misc, source, unknown

diff --git a/smb4k.tdevelop b/smb4k.tdevelop
index e6b591d..1f05626 100644
--- a/smb4k.tdevelop
+++ b/smb4k.tdevelop
@@ -205,10 +205,10 @@
   </kdevcppsupport>
   <kdevfilecreate>
     <filetypes>
-      <type icon="source_h" ext="h" create="template" name="C/C++ header" >
+      <type icon="text-x-hsrc" ext="h" create="template" name="C/C++ header" >
         <descr>A new empty header file for C or C++.</descr>
       </type>
-      <type icon="source_cpp" ext="cpp" create="template" name="C++ source" >
+      <type icon="text-x-c++src" ext="cpp" create="template" name="C++ source" >
         <descr>A new empty C++ file.</descr>
       </type>
     </filetypes>