title: Remove module install queue from OpenErp
body: <p>I was installing a custom module that requires the <code>decimal_precision</code> module, however, this module has been updated, so i downloaded and installed the brand new from <code>apps.openerp.com</code> </p>
  
  <p>Now is giving me the common <code>No handler found</code> error, i need to abort the module installation queue of my openerp installation to create a new db and start over again, but it keeps giving me the error and looking for this <code>decimal_precision</code> as if i never updated it or whatever.</p>
  
  <p>This is the traceback of my <code>openerp-server.log</code></p>
  
  <pre><code>2013-06-08 19:27:58,544 17011 INFO ? openerp: OpenERP version 7.0-20130206-000101
  2013-06-08 19:27:58,544 17011 INFO ? openerp: addons paths:   /opt/openerp/server/openerp/addons
  2013-06-08 19:27:58,544 17011 INFO ? openerp: database hostname: localhost
  2013-06-08 19:27:58,544 17011 INFO ? openerp: database port: 5432
  2013-06-08 19:27:58,544 17011 INFO ? openerp: database user: openerp
  2013-06-08 19:27:58,619 17011 CRITICAL ? openerp.modules.module: Couldn't load module web
  2013-06-08 19:27:58,619 17011 CRITICAL ? openerp.modules.module: No module named decimal_precision
  2013-06-08 19:27:58,620 17011 ERROR ? openerp.service: Failed to load server-wide module `web`.
  The `web` module is provided by the addons found in the `openerp-web` project.
  Maybe you forgot to add those addons in your addons_path configuration.
  Traceback (most recent call last):
  File "/opt/openerp/server/openerp/service/__init__.py", line 59, in load_server_wide_modules
  openerp.modules.module.load_openerp_module(m)
  File "/opt/openerp/server/openerp/modules/module.py", line 415, in load_openerp_module
  getattr(sys.modules['openerp.addons.' + module_name], info['post_load'])()
  File "/opt/openerp/server/openerp/addons/web/http.py", line 593, in wsgi_postload
  openerp.wsgi.register_wsgi_handler(Root())
  File "/opt/openerp/server/openerp/addons/web/http.py", line 483, in __init__
  self.load_addons()
  File "/opt/openerp/server/openerp/addons/web/http.py", line 546, in load_addons
  m = __import__('openerp.addons.' + module)
  File "/opt/openerp/server/openerp/modules/module.py", line 133, in load_module
  mod = imp.load_module('openerp.addons.' + module_part, f, path, descr)
  File "/opt/openerp/server/openerp/addons/account/__init__.py", line 23, in &lt;module&gt;
  import account
  File "/opt/openerp/server/openerp/addons/account/account.py", line 34, in &lt;module&gt;
  import openerp.addons.decimal_precision as dp
  File "/opt/openerp/server/openerp/modules/module.py", line 132, in load_module
  f, path, descr = imp.find_module(module_part, ad_paths)
  ImportError: No module named decimal_precision
  2013-06-08 19:27:58,624 17011 INFO ? openerp.service.wsgi_server: HTTP service (werkzeug) running on 0.0.0.0:8069
  2013-06-08 19:27:58,624 17011 INFO ? openerp: OpenERP server is running, waiting for connections...
  2013-06-08 19:28:01,719 17011 INFO ? werkzeug: 200.82.128.50 - - [08/Jun/2013 19:28:01] "GET / HTTP/1.1" 404 -
  2013-06-08 19:28:02,145 17011 INFO ? werkzeug: 200.82.128.50 - - [08/Jun/2013 19:28:02] "GET /favicon.ico HTTP/1.1" 404 -
  </code></pre>
  
  <p>It says also that no <code>web</code> module could be found, but i think the root of the problem is still the <code>decimal_precision</code> however, the <code>addons</code> path is correct and everything else.</p>
  
  <p>I dropped the installation database from <code>pgadmin3</code> stopped the server with <code>sudo pkill -9 -f openerp-server
  </code> restarted with<code>/etc/init.d/openerp-server start</code> and keeps giving me this error, even without the database installed, how can i abort all this installation without restarting the server?</p>
  
  <p>(I'm logged via Teamviewer remotely, can't reboot the system cause it will kick me away until somebody logs in the server)</p>
  
  <p>Thanks in advance.</p>