Phillip Webb b32887b8eb Add support for logging groups
Provide a way for users to quickly group related loggers together for
easier configuration. The `loggers.group` property can be used to define
a group that can then be configured in the usual `loggers.level.<group>`
way.

Additionally, provide pre-defined groups for `web` and `sql.

Closes gh-14421
2018-09-12 16:25:14 -07:00
..
2018-09-12 16:25:14 -07:00
2018-07-14 08:45:34 +01:00