v1.2

CHANGELOG:

• [feature] Custom field names are now passed to TemplateField implicitly.
• [feature] Expose an Option type for building functional options.
• [ci] Run go vet, gofmt and the race detector during tests

ADDENDUM:

Note that gorilla/csrf respects SemVer as defined at http://semver.org/ but will not make backward-incompatible changes unless a security fix requires it (which is extremely unlikely given the small API of the package!). "MINOR" versions as defined in SemVer will encapsulate additions to the API or resolving implicit behaviour, whereas "PATCH" versions will typically encapsulate documentation changes or clarifications.