added enablePlugins( boolean ), pluginsEnabled(), and modified both execute() methods to skip execution if disabled.
added enablePlugins( boolean ), pluginsEnabled(), and
modified both execute() methods to skip execution if
disabled.


git-svn-id: 6c0206e3b9edd104850923da33ebd73b435d374d@622070 13f79535-47bb-0310-9956-ffa450edef68

tateshitah/jspwiki,tateshitah/jspwiki,tateshitah/jspwiki,tateshitah/jspwiki