IDOutils schema: Additional columns for Icinga 2.
Revert "IDOutils schema: Additional columns for Icinga 2."

This reverts commit 5307887b79e1cd553dd4e415cab8b397615f422f.
Merge branch 'support/1.11' into next
Icinga 2 schema extensions.
Fix the PostgreSQL schema.

Fixes #5850
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Classic ui: start with unhandled problems view instead of TAC.

Fixes #4817
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	Changelog
Merge branch 'support/1.11' into next

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	Changelog
Merge branch 'support/1.11' into next
Merge branch 'support/1.11' into next

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classic-ui: fix status.cgi gets stuck in loop when sorting on "All Unhandled Problems" #5886

with the fix for #4404 it was introduced to sort hosts again before
displaying them. This way "statussort_list" was reused. Due to not
properly resetting "statussort_list" to NULL in "free_sort_list",
"sort_status_data" wasn't working properly as it expects
"statussort_list" to be NULL when called.
this also fixes a bug where hosts were sorted only ascending and
sort option wasn't displayed in "HOST_SERVICE_DETAIL" style.

refs: #5886
refs: #5694
whatthecommit: a few bits tried to escape, but we caught them
Merge branch 'support/1.11' into next
Merge branch 'fix/sorting-allunhandledproblems-5886' into next

fixes: 5886
fixes: 5694
classic-ui: Adding alias to title in host/service overview #5900

Adding alias to title. Useful when hosts are displayed with
display_name attribute.

refs: #5900
Merge branch 'support/1.11' into next

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	Changelog
Merge branch 'feature/add-alias-to-title-5900' into next

fixes #5900
fix ido2db produces empty transactions

The patch works around instances where only the "baseline" set
of IDO data are submitted by core which, as there's no real data,
causes empty "BEGIN/COMMIT" transactions to be generated by ido2db.

Empirically, the largest such packet I saw was 47 bytes, with
others at 46 and 46 bytes.

fixes #4221

Conflicts:
	Changelog
Merge branch 'support/1.11' into next
* Added the feature requested in #6829:
** There is now an icon when passive checks are disabled and active checks are not on a per host/service status.
** There is now an icon when event handling is disabled on a per host/service status.
* Added two images as placeholders for the feature additions until something better is added.

refs #6829