opaleye-0.3.1: CHANGELOG.md

## 0.3.1

* SQL code generator escapes column names, so table column names can
  be the same as SQL keywords.
* Add `like` operator
* Add the types `PGCitext`, `PGArray`, `PGBytea`
* 
	
## 0.3

* Replace `Default QueryRunner` with a new class `DefaultQueryRunnerColumn`, migrate with `s/Default QueryRunner/DefaultQueryRunnerColumn` and `s/def/queryRunnerColumnDefault/`
* Remove `ShowConstant`, use the monomorphic functions defined in the new module `Opaleye.PGTypes` instead. You will need to replace `Column Bool` with `Column PGBool` et.c. in query signatures
* Re-export more modules from `Opaleye`
* Add `boolAnd`, `boolOr,` `max`, and `min` aggregators
* Add `lower` and `upper`
* Add operator fixities
* Add `maybeToNullable`
* Add column instances for `Bool`, `UUID`, `Text`, and `UTCTime`
* Expose fieldQueryRunnerColumn from Opaleye.RunQuery
* Add `unsafeCast`
* Re-export `Unpackspec` from `Opaleye.Manipulation`