Add a configuration section that lists all options for each plugin.
List options in alphabetic order.
Mention the default value for each option.
Use same sentences to describe concepts common to different plugins eg 'auto
option, install description
The new behavior is as follows:
1. If the file size is greater than 50MB, and the 'truncate' config
option is 'no', skip the file.
2. If the file size is greater than 50MB, and the 'truncate' config
option is 'yes', reencode the file to ogg, and truncate to first 5
minutes.
