Add nimi to test
Summattava_taso should be in db and correct type
Kumulatiivinen should be empty string or X
Double quoted instead of single
Summattava_taso tests
Kayttotarkoitus should be empty string, M or O
SumLevel taso uniqueness: yhtio, tyyppi
Added SumLevel controller and CRUD actions
Company has_many sum_levels
Refactor Curriencies controller
Extracted LIKE search to Searchable module
Exact search to Searchable
Unified sort column logic
Format
Sort column bugfix
Extract Column sort logic in own file.
Added cache for user permissions
Searchable query build bugfix
Format
Added assing and revoke permission methods for user.
Refactor permissions
Added self.human_readable_type method for SumLevel children