removed malicious java start arguments in debian start script which had

been removed from the other start scripts recently. The reason to do so
was a comparisment of a debian-installed YaCy with 20 million document
which crashed after 10 hours with the debian start script, but did not
crash with the startYACY.sh start script. Both scripts now use the same
java start arguments.
Added also the Solr MMapDirectoryFactory switch which was missing so far
in the debian start script.

addon/yacyInit.m4

@@ -57,7 +57,8 @@ SHUTDOWN_TIMEOUT=50
 # Default niceness if not set in config file
 NICE_VAL=0
 
-JAVA_ARGS="-server -XX:MaxPermSize=256m -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseGCOverheadLimit -XX:+UseAdaptiveSizePolicy -Djava.net.preferIPv4Stack=true -Djava.awt.headless=true -Dfile.encoding=UTF-8"
+JAVA_ARGS="-server -Djava.net.preferIPv4Stack=true -Djava.awt.headless=true -Dfile.encoding=UTF-8"
+
 #check if system supports large memory pages and enable it if possible
 HUGEPAGESTOTAL="$(cat /proc/meminfo | grep HugePages_Total | sed s/[^0-9]//g)"
 if [ -n "$HUGEPAGESTOTAL" ] && [ $HUGEPAGESTOTAL -ne 0 ]
@@ -65,6 +66,9 @@ then
   JAVA_ARGS="$JAVA_ARGS -XX:+UseLargePages"
 fi
 
+#turn on MMap for Solr if OS is a 64bit OS
+if [ -n "`uname -m | grep 64`" ]; then JAVA_ARGS="$JAVA_ARGS -d64 -Dsolr.directoryFactory=solr.MMapDirectoryFactory"; fi
+
 ifdef(`openSUSE', `dnl
 . /etc/rc.status
 rc_reset