Fix SQLCommenter database/sql test (#221)

* Updated database/sql to use core-0.1.2

* Fix SQLCommenter database/sql test

* Ran go mod tidy

Fix SQLCommenter database/sql test (#221)

* Updated database/sql to use core-0.1.2

* Fix SQLCommenter database/sql test

* Ran go mod tidy

Fix sqlcommenter go imports (#219)

* Fix a missing import

* Update sql to use the new core

* updated more libraries

Fix sqlcommenter go imports (#219)

* Fix a missing import

* Update sql to use the new core

* updated more libraries

Add comments and unittests to go-sqlcommenter-core (#218)

Merge pull request #199 from google/go/docs

updated docs

Merge pull request #189 from google/gorrila/mux/net/http

added test, simpplified the impl to just a struct

Merge pull request #199 from google/go/docs

updated docs

Merge pull request #197 from google/gorrila/mux/gorrila/mux

added method to route in SQLCommenterMiddleware

Merge pull request #193 from google/gorrila/mux/gorrila/mux

Support for gorrila/mux framework