Fixed folder naming for mysql-macports plugin and improved start/stop scripts.

plugins/mysql-macports/mysql-macports.plugin.zsh

+# commands to control local mysql-server installation
+# paths are for osx installation via macports
+
+alias mysqlstart='sudo /opt/local/share/mysql5/mysql/mysql.server start'
+alias mysqlstop='sudo /opt/local/share/mysql5/mysql/mysql.server stop'
+alias mysqlrestart='sudo /opt/local/share/mysql5/mysql/mysql.server restart'
+
+alias mysqlstatus='mysqladmin5 -u root -p ping'

plugins/mysql/mysql-macports.plugin.zsh

-# commands to control local mysql-server installation
-# paths are for osx installtion via macports
-
-alias mysqlstart='sudo /opt/local/bin/mysqld_safe5'
-alias mysqlstop='/opt/local/bin/mysqladmin5 -u root -p shutdown'
-alias mysqlstatus='mysqladmin5 -u root -p ping'
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