Advanced Plugin Manager gives you the ability to reload, to enable, to disable and to load your plugins.
/load <Path to plugin.jar>
I tried to keep it simple, so I use only one permission for all commands,
but if you want more permissions, just let me know in the comments!
If you like the plugin, I would be very happy about a donation!
If you like to code, here's the GitHub URL: http://adf.ly/1XHLIX