Test WP's spent hours property with read permission
Respect time entry view permission

Conflicts:

	app/models/work_package.rb
Fix cuke
Test that version custom field is correctly displayed
Display custom fields of type version
Merge pull request #2182 from opf/hotfix/17283_value_for_version_custom_field_not_displayed_in_split_view

17283 value for version custom field not displayed in split view
Merge pull request #2190 from opf/hotfix/4_17304_view_time_entries_permission_not_respected_on_wp_spent_hours

17304 view time entries permission not respected on wp spent hours
Merge branch 'release/4.0' into feature/merge_release_4_into_dev

Conflicts:
	app/assets/javascripts/angular/work_packages/controllers/details-tab-overview-controller.js
	app/models/work_package.rb
	config/locales/js-de.yml
	config/locales/js-en.yml
	karma/tests/work_packages/controllers/details-tab-overview-controller-test.js
Merge pull request #2198 from opf/feature/merge_release_4_into_dev