Custom addons path...

With the latest trunk, there is no need to put addons under the bin directory. Now you can put addons in separate directory. You can start OpenERP server like this:

$ ./tinyerp-server.py --addons-path=/path/to/addons

The bin/addons will be considered as default addons directory which can be overridden by the /path/to/addons. That is, if an addon exists in bin/addons as well as in /path/to/addons (custom path) the later will be given preference over the one found in bin/addons (default path).

See the Stephane Wirtel's blog on how to get the latest version of the server from the Launchpad.