Add QueryRunner to reexports
Changed the type returned by `count` from `Int` to `Int64`

The PostgreSQL type of `count` is `bigint`
(http://www.postgresql.org/docs/9.1/static/functions-aggregate.html),
which `postgresql-simple` can convert to `Integer` or `Int64`, but not
`Int`.
Merge pull request #73 from c-lewis/fix_count

Changed the type returned by `count` from `Int` to `Int64`
Correct spelling in comment
FIXME on ShowConstant instance
Note that Operators2.constant and ExprArr.constant should be considered deprecated
Add ShowConstant instance for String to Text
Update FIXME about ShowConstant Text Text
Use showThrough
Merge branches 'master' and 'dev' of ssh://github.com/karamaan/karamaan-opaleye into dev
Unpackspec pc boilerplate
ExprArr: add Num instance.

Makes writing where/restrict expressions much nicer.
cast
Dubious QueryRunner instance for nested Maybes
ExprArr: lower, coalesce, cast
Drop haskelldb constraint
Merge remote-tracking branch 'hesselink/implement-offset'
Add isNotNull and isNotNullExpr
disable test suites
Default QueryRunner (Wire Int64) Int64