Default QueryRunner (Wire Int64) Int64
Merge pull request #77 from silkapp/queryrunner-int64

Default QueryRunner (Wire Int64) Int64
Unpackspec pc boilerplate
ExprArr: add Num instance.

Makes writing where/restrict expressions much nicer.
ExprArr: lower, coalesce, cast
Drop haskelldb constraint
Merge remote-tracking branch 'hesselink/implement-offset'
Add isNotNull and isNotNullExpr
disable test suites