Clean up for Munin Plugin Gallery
- Removed option to set customized category in plugin configuration file. Nearly to none plugin offers this option. (IMHO: Customized category should be set in Munin Master configuration if needed)
- Changed category from "Process Info" to standard category "processes"
- Changed family from "auto" to "manual" as this plugin has no "autoconf" capability. It needs manual configuration to select the processes to observe.