partly revert latest windows changes:

YaCy has to be installed to a directory with write access for the
running user.
DATA folder is now used in the YaCy folder again.
For using another location, the start script has to be heavily modified
for loading proper start parameters after YaCy has been started once.

startYACY.bat

@@ -30,7 +30,7 @@ Echo.
 Echo You can download Java at http://java.com/
 Echo.
 Echo ***************************************************************************
-start %priority% javaw %javacmd% -classpath %CLASSPATH% net.yacy.yacy -start YaCy
+start %priority% javaw %javacmd% -classpath %CLASSPATH% net.yacy.yacy
 Echo You can close the console safely now.
 
 GoTo :END

startYACY_debug.bat

@@ -37,7 +37,7 @@ Echo  ^>^> YaCy started as daemon process. Administration at http://localhost:%p
 
 title YaCy - http://localhost:%port%
 
-start "YaCy" %priority% /B /WAIT java %javacmd% -classpath %CLASSPATH% net.yacy.yacy -start YaCy
+start "YaCy" %priority% /B /WAIT java %javacmd% -classpath %CLASSPATH% net.yacy.yacy
 
 if not exist DATA\yacy.restart GoTo :END
 del DATA\yacy.restart