Rename ksocket and kcache

HACKING

@@ -252,9 +252,9 @@ valgrind --tool=callgrind --instr-atstart=no digikam
 and prepare the situation you want to profile. Then, in another console, start profiling with
 "callgrind_control -i on" and, after the situation has passed, request a profile dump with
 "callgrind_control -d".
-The resulting callgrind.out files need to be viewed with the kcachegrind program, e.g.:
+The resulting callgrind.out files need to be viewed with the tdecachegrind program, e.g.:
 
-kcachegrind callgrind.out.16693.1
+tdecachegrind callgrind.out.16693.1
 
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 API Documentation Validation, User Documentation Validation, Source Code Checking