Fixed installation issues on debian:

- Don't abort if plugin table exists
- Use longer timeout for start/stop of mysqld

debian/dist/Debian/mariadb-server-5.5.postinst:
  Don't abort if plugin table exists
debian/mariadb-server-5.5.mysql.init:
  Use longer timeout for start/stop of mysqld

debian/dist/Debian/mariadb-server-5.5.postinst

@@ -212,7 +212,7 @@ EOF
     # admin might already have chosen to remove one or more plugins. Newlines are necessary.
     install_plugins=`/bin/echo -e \
         "USE mysql;\n" \
-        "CREATE TABLE plugin (name char(64) COLLATE utf8_bin NOT NULL DEFAULT '', " \
+        "CREATE TABLE IF NOT EXISTS plugin (name char(64) COLLATE utf8_bin NOT NULL DEFAULT '', " \
         "  dl char(128) COLLATE utf8_bin NOT NULL DEFAULT '', " \
         "  PRIMARY KEY (name)) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='MySQL plugins';" `
 

debian/mariadb-server-5.5.mysql.init

@@ -109,7 +109,7 @@ case "${1:-''}" in
   	    /usr/bin/mysqld_safe > /dev/null 2>&1 &
 
 	    # 6s was reported in #352070 to be too few when using ndbcluster
-	    for i in $(seq 1 "${MYSQLD_STARTUP_TIMEOUT:-14}"); do
+	    for i in $(seq 1 "${MYSQLD_STARTUP_TIMEOUT:-30}"); do
                 sleep 1
 	        if mysqld_status check_alive nowarn ; then break; fi
 		log_progress_msg "."
@@ -142,7 +142,7 @@ case "${1:-''}" in
 	    log_daemon_msg "Killing MariaDB database server by signal" "mysqld"
 	    killall -15 mysqld
             server_down=
-	    for i in 1 2 3 4 5 6 7 8 9 10; do
+	    for i in 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10; do
               sleep 1
               if mysqld_status check_dead nowarn; then server_down=1; break; fi
             done