title: After i deleted plugin, it is still executing in my eclipse
body: <p>i have created a plugin for eclipse and created update site for it and everything. I installed on my Eclipse and it worked like a charm.
  But then i want to remove the plugin.
  I have tried using help>install new software>what´s already installed>click on plugin name > uninstall...</p>
  
  <p>It didn´t work, the plugin is still on my eclipse.</p>
  
  <p>I have tried deleting the .jar on my plugins folder...</p>
  
  <p>It didn´t work, the plugin is still on my eclipse(i know that because my plugin does something when my mouse is hovering a method).</p>
  
  <p>What do i do? How can I(and my plugin users) remove this plugin?</p>
  
  <p>By the way, to build my plugin website, i used this tutorial:
  <a href="http://wiki.eclipse.org/FAQ_How_do_I_create_an_update_site_(site.xml)%3F" rel="nofollow">http://wiki.eclipse.org/FAQ_How_do_I_create_an_update_site_(site.xml)%3F</a></p>
  
  <p>And uploaded my plugin on my website </p>