Sentry plugin for B3

Installation

1. Copy the file extplugins/sentry.py into your b3/extplugins folder and extplugins/conf/plugin_sentry.ini into your b3/conf folder
2. This plugin requires the raven-python module.
3. Add the following line in your b3.xml file (below the other plugin lines)

<plugin name="sentry" config="@conf/plugin_sentry.ini"/>