ChicagoBoss/boss_db — pull request #184 by mihawk (2014-06-26 10:17:59+00:00)
Title: allow custom type

use case:

```erlang
-module(toto, [
Id ::pk(),
Phone ::phone(),
Caviar ::string()
Status ::picklist()
]).

```
would like to extend type, from the source code i see:
string, binary, uuid, date, datetime, integer, float, boolean, timestamp, atom

i guess this small change will not affect existing code,
perhaps some test case.