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/kshowmail/kshowmail.cpp b/kshowmail/kshowmail.cpp
index 4c089c7..ff1a3d9 100644
--- a/kshowmail/kshowmail.cpp
+++ b/kshowmail/kshowmail.cpp
@@ -134,7 +134,7 @@
   new TDEAction( i18n( "Show &complete highlighted messages" ), "letter-open", Key_F3, this, SLOT( slotShowMessage() ), actionCollection(), "show_complete" );
   new TDEAction( i18n( "&Delete highlighted messages" ), "eraser", Key_Delete, this, SLOT( slotDelete() ), actionCollection(), "delete" );
   new TDEAction( i18n( "S&top current transfer" ), "process-stop", 0, this, SLOT( slotStop() ), actionCollection(), "stop" );
-  new TDEAction( i18n( "Show Filter Log" ), "log", Key_F4, this, SLOT( slotShowFilterLog() ), actionCollection(), "show_filterlog" );
+  new TDEAction( i18n( "Show Filter Log" ), "text-x-log", Key_F4, this, SLOT( slotShowFilterLog() ), actionCollection(), "show_filterlog" );
   new TDEAction( i18n( "Add sender to whitelist" ), "add_user", 0, this, SLOT( slotAddToWhitelist() ), actionCollection(), "addWhitelist" );
   new TDEAction( i18n( "Add sender to blacklist" ), "delete_user", 0, this, SLOT( slotAddToBlacklist() ), actionCollection(), "addBlacklist" );