Remove sqlite from gem file
SumLevel, SumLevel::Internal, SumLevel::Internal, SumLevel::Vat, SumLevel::Profit models created
STI custom type column value fix
find_sti_class fix
SumLevel default scopes.
SumLevel Ö is not allowed sum level
Internal and External should begin with tests
Added to_s type cast to taso
SumLevel::Profit task validates only_intergers
SumLevel validates taso uniqueness
Refactor
More beautifull should_begin_with
Combined should_start_with validation logic