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

diff --git a/kdiff3plugin/kdiff3_plugin.desktop b/kdiff3plugin/kdiff3_plugin.desktop
index 0ff3cb1..19c8a56 100644
--- a/kdiff3plugin/kdiff3_plugin.desktop
+++ b/kdiff3plugin/kdiff3_plugin.desktop
@@ -3,4 +3,4 @@
 Type=Service
 Name=Compare/Merge Files/Directories
 X-TDE-Library=libkdiff3plugin
-ServiceTypes=KonqPopupMenu/Plugin,all/all
+X-TDE-ServiceTypes=KonqPopupMenu/Plugin,all/all
diff --git a/src/kdiff3.desktop b/src/kdiff3.desktop
index 1bea2a6..3bc1afe 100644
--- a/src/kdiff3.desktop
+++ b/src/kdiff3.desktop
@@ -49,7 +49,7 @@
 Icon=kdiff3
 Type=Application
 Categories=Qt;TDE;Development;
-DocPath=kdiff3/index.html
+X-DocPath=kdiff3/index.html
 Comment=A File And Directory Comparison And Merge Tool
 Comment[ar]=�������� ������������  �� ������ ���������� �� ���������� (�������������� )
 Comment[bg]=�������������������� ���� �������������������� �� �������������� ���� �������������� �� ��������������������
diff --git a/src/kdiff3part.desktop b/src/kdiff3part.desktop
index 54bdef6..82b4284 100644
--- a/src/kdiff3part.desktop
+++ b/src/kdiff3part.desktop
@@ -13,6 +13,6 @@
 Name[xx]=xxKDiff3Partxx
 Name[zh_CN]=KDiff3 ������
 MimeType=text/x-diff
-ServiceTypes=KParts/ReadOnlyPart,KParts/ReadWritePart
+X-TDE-ServiceTypes=KParts/ReadOnlyPart,KParts/ReadWritePart
 X-TDE-Library=libkdiff3part
 Type=Service