Prevent non-existent help handbook from populating the main handbook table of contents.

ksquirrel/ksquirrel.desktop

@@ -2,7 +2,11 @@
 Type=Application
 Exec=ksquirrel %i %u
 Icon=ksquirrel
-DocPath=ksquirrel/index.html
+# Restore the following key and remove this comment when a help handbook
+# is written. Disabling this key prevents populating the main handbook
+# table of contents and a resulting error message of
+# 'There is no documentation available for /xyz/index.html.'
+# DocPath=ksquirrel/index.html
 Terminal=false
 Name=KSquirrel
 MimeType=image/x-vnd.adobe.photoshop;image/x-hdr;image/x-exr;image/x-eps;image/x-psp;image/x-dds;image/x-mdl;image/ljpeg;image/x-dicom;image/x-xfig;image/svg+xml;image/gif;image/x-xpm;image/x-xbm;image/jpeg;image/x-bmp;image/png;image/tiff;image/x-portable-bitmap;image/x-portable-pixmap;image/x-portable-anymap;image/x-portable-greymap;image/jp2;image/x-jng;image/x-wmf;video/x-mng;video/x-flic;image/x-targa;image/x-pcx;image/x-photo-cd;image/x-rgb;image/x-xcursor;image/x-ico;image/psd;image/x-djvu;image/x-xcf-gimp;image/x-avs;image/x-cut;image/x-dxf;image/x-iff;image/x-jbig;image/x-koala;image/x-leaf;image/x-lif;image/x-mac;image/x-msp;image/x-mtv;image/x-neo;image/x-pi1;image/x-pi3;image/x-pict;image/x-pix;image/x-pxr;image/x-ras;image/x-raw;image/x-rawrgb;image/x-sct;image/x-sun;image/x-utah;image/x-wal;image/x-wbmp;image/x-xim;image/x-xwd;application/x-font-ttf;application/x-font-ttc;application/x-font-otf;application/x-font-type1