Merge branch 'feature/issue_autocomplete' of github.com:opf/openproject into feature/issue_autocomplete
Creates missing work package custom values
Adds changelog entry
Merge pull request #743 from opf/migration/create_missing_work_package_custom_field_values

[Migration] Create missing work package custom field values
Fixed a bug with non-functional validation for work package parents
Merge pull request #750 from opf/fix/work_package_parent_validation

Fixed a bug with non-functional validation for work package parents
Fixed missing parent_id error
Fixes timelines options migration
Adds changelog entry
Removed unnecessary space from split()
Merge branch 'dev' into feature/issue_autocomplete

Conflicts:
	doc/CHANGELOG.md
Fixes spec
remove attr_protected from Enumeration
Merge branch 'dev' into fix/ma_enum_controller

Conflicts:
	doc/CHANGELOG.md
enable ForbiddenAttributesProtection in query.rb
add changelog entry for #3336
fixed double root node for planning_elements
fixed double root nodes for projects
make rabl 0.9.3 consider #include_child_root in collections
@TODO fix rabl instead of monkey patching it
fixed double root elements in various other views
i.e. planning_element_type_colors, planning_element_types, project_associations, project_types, reported_project_statuses, reportings and statuses