close TCP connections properly on exception. #415
version check. fixes #295
fix sha256 in versioncheck. #295
update drools example file
return generic error for search exceptions

don't let the web interface think everything is alright, instead fill out the generic error object.
set upper range for relative timerange filters to avoid showing messages from the future. lol timezones :v
lower log level for stream rule exception

add exception tracking metric, not exposed in the ui (only via the "show metrics" menu item).

issue #357
clean up default log4j.xml

include log4j-extras to support better rolling file appenders, including size limits

fixes #357
search result chart widget. Graylog2/graylog2-web-interface#487
bump to rc.2
Propagating actual errors occuring during email transport
add http proxy for use with external resources

useful for setups where the individual graylog2 nodes don't have direct internet access
(e.g. to access http json path or do versionchecks)

fixes #422
Catching exception that is thrown when invalid input comes in via GELF processor.

Fixes #426
Adding first steps of DI to replace omnipresent Core object someday

Still WIP, currently the MetricRegistry and MongoConnection is injected,
      more to come.
Allowing Injection of Configuration
Adding FilterRegistry for injection, removing MetricRegistry in a place