カスタムフィールド連携
Merge branch 'master' of https://github.com/LGDIS/LGDIS

Conflicts:
	plugins/lgdis/db/seeds/custom_fields.rb
	plugins/lgdis/db/seeds/custom_fields_trackers.rb
	plugins/lgdis/db/seeds/trackers.rb
	plugins/lgdis/lib/lgdis/issue_patch.rb
	plugins/lgdis/lib/lgdis/issues_controller_patch.rb
Merge branch 'master' of https://github.com/LGDIS/LGDIS