Fix copyright.
Docs: wrong CHANGE_RETRY_HOST_CHECK_INTERVAL parameters.

Ref: #6040
Docs: wrong CHANGE_RETRY_HOST_CHECK_INTERVAL parameters.

Ref: #6040 (german version, too)
Docs: wrong note on ADD_HOST_COMMENT.

Ref. #6039
Revert "add colon to illegal_object_name_chars" (#4227)

Refs #5931
add url_cgi_path to configcgi.xml (from #6459)
Docs: add exclude_customvar_* to configcgi.

Refs: #4390

Signed-off-by: Michael Friedrich <michael.friedrich@netways.de>
Docs: exclude all custom vars.

Refs #4390

Signed-off-by: Michael Friedrich <michael.friedrich@netways.de>
Fix typo in command 'disable_cmd_cgi_csrf_protection'

fixes #6363
Monitoring Exchange -> Icinga Exchange
Merge branch 'master' into next

Conflicts:
	de/configmain.xml
	en/extcommands2.xml
Docs: dead link in notifications.html

Refs: #6848

Signed-off-by: Michael Friedrich <michael.friedrich@netways.de>
Docs: Error in threshold definitions.

Refs: #6877

Signed-off-by: Michael Friedrich <michael.friedrich@netways.de>
Docs #7513: add sort_status_data_by_default to config.cgi.

Refs: #5965

Signed-off-by: Michael Friedrich <michael.friedrich@netways.de>
Docs #7548: add set_sticky_acknowledgment to cgi config.

Refs: #6237

Signed-off-by: Michael Friedrich <michael.friedrich@netways.de>
Docs #6475: Apache 2.4 requires 'a2enmod cgi'.

Signed-off-by: Michael Friedrich <michael.friedrich@netways.de>
Docs #6866: update documentation for systemd usage.

Refs: #6710

Signed-off-by: Michael Friedrich <michael.friedrich@netways.de>
Docs: update versions.

Signed-off-by: Michael Friedrich <michael.friedrich@netways.de>
Remove duplicate description of exclude all custom vars