golint fixes for daemon/ package

- some method names were changed to have a 'Locking' suffix, as the
 downcased versions already existed, and the existing functions simply
 had locks around the already downcased version.
 - deleting unused functions
 - package comment
 - magic numbers replaced by golang constants
 - comments all over

Signed-off-by: Morgan Bauer <mbauer@us.ibm.com>

daemon/commit.go

@@ -5,6 +5,8 @@ import (
 	"github.com/docker/docker/runconfig"
 )
 
+// ContainerCommitConfig contains build configs for commit operation,
+// and is used when making a commit with the current state of the container.
 type ContainerCommitConfig struct {
 	Pause   bool
 	Repo    string
@@ -15,14 +17,14 @@ type ContainerCommitConfig struct {
 }
 
 // Commit creates a new filesystem image from the current state of a container.
-// The image can optionally be tagged into a repository
+// The image can optionally be tagged into a repository.
 func (daemon *Daemon) Commit(container *Container, c *ContainerCommitConfig) (*image.Image, error) {
-	if c.Pause && !container.IsPaused() {
-		container.Pause()
-		defer container.Unpause()
+	if c.Pause && !container.isPaused() {
+		container.pause()
+		defer container.unpause()
 	}
 
-	rwTar, err := container.ExportRw()
+	rwTar, err := container.exportRw()
 	if err != nil {
 		return nil, err
 	}
@@ -55,6 +57,6 @@ func (daemon *Daemon) Commit(container *Container, c *ContainerCommitConfig) (*i
 			return img, err
 		}
 	}
-	container.LogEvent("commit")
+	container.logEvent("commit")
 	return img, nil
 }