lib: `trst_helper` #41
models: `Trst::ParnerPerson` typo
controllers: `system` add class variables
models: `Trst::User` fix #42
views: layouts `public,system` partial <-> haml
views: CRUD, partials fix #43
update CHANGELOG
bump version v0.3.1.2
Merge branch 'feature/v0.3.1.2' into develop