Add redirect from Issue#id to Issue#iid
Allow markdown tables
Fix add and remvove key. Work with relations
Remove old migration tasks

You should update to 6.0 before proceed with update to higher version.
So its no reason to keep old tasks any more.
It should be still available in 6-0-stable but not in master
Add test and docs for markdown tables
Fix md help table header
Refactor deploy key menegement
Fix add and remvove key. Work with relations
Remove bottom margin for text in event note
[#4821] - Fix some missing iids
Add event filter for group and project show pages
Merge pull request #4897 from rtripault/iids

[#4821] - Fix some missing iids
Add br for new sentense in Compare view
Clear redis cache and precompile assets during update to 6.0. Fix #4874 #4840

As a consequence on the namespaces change from 5.4 to 6.0, after upgrade
lots of links on the dashboard were not working (pointing to projects
without the group part on the url).
Also, after upgrading to 6.0-stable, the network (branch history) function
does not work. The progress bar rotates forever, but the network graph cannot
be generated.

Clearing redis cache fixes those issues.
Merge pull request #4904 from axilleas/master

Clear redis cache and precompile assets during update to 6.0. Fix #4874 #4840
Fix mailer tests
Set correct header border-bottom color for themes
Warning about issue numbers.
Fix project_id field in MergeRequest API
Merge pull request #4916 from marbindrakon/merge_request_api

Fix project_id field in MergeRequest API