i18n: `clns.yml` add translation
views: `Clns::Cache::Book` pdf template, typo
views: `report.haml` for handling tasks which generates reports
views: `report/cb_monthly.rb` skeleton
assets: js, `Clns.desk.report` skeleton
update CHANGELOG
bump version v0.2.15
Merge branch 'feature/v0.2.15' into develop