* Added Recent Graylog Entries to Device Overview (WIP)
* Improved "Recent Graylog" entries on device overview (WIP)
Added $config['graylog']['device-page']['rowCount'] to set maximum rows shown in "Recent Graylog" on device overview (Default: 10)
Added $config['graylog']['device-page']['maxLevel'] to set the maximum message level shown in "Recent Graylog" on device overview (Default: 7, validates value to be >= 0 and <= 7)
* Fixed code styling issue
* Added Log Level filter to Graylog widget
Added Log Level filter to Graylog pages (device pages and graylog overview)
* Added documentation for new configuration options
* Removed unneccesary (and already commented) using
Renamed "maxLevel" to "loglevel" as suggested by a colleague
* Added doc for $config['graylog']['loglevel']
* Removed includes/html/print-graylog.inc.php and inlined it in includes/html/pages/device/overview/graylog.inc.php
Removed comma in json object in resources/views/widgets/graylog.blade.php
Replaced translation strings in resources/views/widgets/settings/graylog.blade.php with existing translation strings
* log level -> minimum log level
* Use Config::get() default functionality
* Oops
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