Fix the icon display in export results overview for Icinga2

fixes #2688
Fix the search query escaping

fixes #2619
Add additional fields to the host view

fixes #2497
Remove the wrong service assignment list

fixes #2002
Add a button to host and service view to disable the lconf export

fixes #2330
Fix miissing host display_name attribute: wrong lconfHostDisplayNotes

fixes #2801
Fix LCONF->EXPORT->CLUSTER only allows [a-zA-Z0-9_]

fixes #2175
Isolate Escalation property from Service and Host

fixes #2799
Update doc/install.md, Changelog, Authors
Fetch version from etc/make/version.m4
Update spec file to 1.4.1, drop changelog

refs #2807
Fix contact notification settings for service in the ConactView

fixes #2396
Update Changelog

refs #2807
Remove the broken contact settings tab from the structuralobject view

fixes #2421
Update Changelog for 1.4.1

fixes #2807
spec: Fix for 1.4.1
Update doc/install.md for 1.4.1
Merge branch 'support/1.4' into next

Conflicts:
	doc/INSTALL