Added close sprint from backlog menu (requires all stories to be closed).
Do not add filter, columns if backlogs module not enabled
Added backlogs_issue_type as column.
Updated label_points_committed Russian translation

It was incorrectly translated to mean "points finished"
Merge pull request #1008 from V-Alexeev/master

Updated label_points_committed Russian translation
translated tr.yml

It was translated for Turkish.
Update es.yml

Updated spanish translation
Choose nokogiri depending on RM version. (See #1020)

This is done to avoid conflict with RM 2.3 which pinned
nokogiri at "<1.6.0" for group :test.
Change criteria for verifying settings page is shown due to new title naming in RM 2.4.
Merge pull request #1016 from picodotdev/master

Update es.yml
Merge pull request #1014 from mertskaplan/patch-1

translated tr.yml
Merge remote-tracking branch 'efigence/master'. (See issue #1007)
Merge remote-tracking branch 'ande3577/fea/allow_closing_sprint_from_backlogs_view'
Merge remote-tracking branch 'ande3577/fea/hide_filters_columns_if_backlogs_not_enabled_on_project'
Merge remote-tracking branch 'ande3577/fea/show_backlog_type_as_column'

Conflicts:
	lib/backlogs_issue_query_patch.rb
Add RM 2.4.2 to travis CI
Merge remote-tracking branch 'origin/master'
Update Japanese translation
Add prefix url (if any) on bulk_update and release/show links, #1022
Merge pull request #1026 from notdryft/master

Add prefix url (if any) on bulk_update and release/show links, #1022