Lots of various golint fixes

Changes some names to match go conventions
Comments all exported methods
Removes dot imports

storagedriver/filesystem/driver_test.go

@@ -0,0 +1,24 @@
+package filesystem
+
+import (
+	"os"
+	"testing"
+
+	"github.com/docker/docker-registry/storagedriver"
+	"github.com/docker/docker-registry/storagedriver/testsuites"
+	. "gopkg.in/check.v1"
+)
+
+// Hook up gocheck into the "go test" runner.
+func Test(t *testing.T) { TestingT(t) }
+
+func init() {
+	rootDirectory := "/tmp/driver"
+	os.RemoveAll(rootDirectory)
+
+	filesystemDriverConstructor := func() (storagedriver.StorageDriver, error) {
+		return New(rootDirectory), nil
+	}
+	testsuites.RegisterInProcessSuite(filesystemDriverConstructor, testsuites.NeverSkip)
+	testsuites.RegisterIPCSuite(driverName, map[string]string{"rootdirectory": rootDirectory}, testsuites.NeverSkip)
+}