Fix ServiceTypes, ExcludeServiceTypes, and DocPath desktop file entries to match XDG specifications

diff --git a/src/kbibtex.desktop b/src/kbibtex.desktop
index 645be2b..5039a0f 100644
--- a/src/kbibtex.desktop
+++ b/src/kbibtex.desktop
@@ -4,7 +4,7 @@
 Exec=kbibtex %U %i -caption "%c"
 Icon=kbibtex
 Type=Application
-DocPath=kbibtex/index.html
+X-DocPath=kbibtex/index.html
 Comment=A BibTeX editor for TDE
 Comment[de]=Ein BibTeX-Editor f��r TDE
 MimeType=text/x-bibtex;
diff --git a/src/kbibtex_part.desktop b/src/kbibtex_part.desktop
index 93e3b2e..bb84803 100644
--- a/src/kbibtex_part.desktop
+++ b/src/kbibtex_part.desktop
@@ -10,6 +10,6 @@
 Name[pt_BR]=Parte do KBibTeX
 Name[de]=Einbettungsf��hige Komponente von KBibTeX
 MimeType=text/x-bibtex;application/x-endnote-library;
-ServiceTypes=KParts/ReadOnlyPart,KParts/ReadWritePart
+X-TDE-ServiceTypes=KParts/ReadOnlyPart,KParts/ReadWritePart
 X-TDE-Library=libkbibtexpart
 Type=Service