more information in indexer failures table. #653
make DeflectorExistsAsIndexNotification closable. Graylog2/graylog2-server#452
updated documentation links for dead letters. #653
bump to 0.20.1
when missing a valid session, redirect to requested page after login

(issue was in wrong project)

fixes Graylog2/graylog2-server#440
redirect(null), I nulled.

fixes Graylog2/graylog2-server#440
Node details - heap not updated

only simple html fixes

fixes #664
fix unused test
don't show lock/unlock buttons for empty dashboards

you can't move anything anyway

fixes #670
properly fill global network io for global inputs

fixes #665
make fields selection survive pagination and link sharing

a list of the selected fields is now transported through the controller
in addition the query fragment is used to select the shown fields to allow sharing the url directly

only direct searches are preserved right now, the handling of saved searches, new searches, resetting the field list, CSV exports etc need more work

issue #610
add missing javascript library

issue #610
fix stub selenium test

issue #610
allow copying message ids to native clipboard

basically applicable for other things too, right now we only treat message ids like this

fixes #694
quick buttons for message result field selection

issue #689
fix typo in notification
fix representation of doubles in formatted message fields. #678
properly display floating point values in chart hover details. fixes #678
we be lootin' - fixes #687
wording change and icon for extractor exceptions. #683