/// <summary>Insert a single commit into the store, returning its unique name.</summary>
/// <remarks>Insert a single commit into the store, returning its unique name.</remarks>
/// <param name="builder">the builder containing the proposed commit's data.</param>
/// <returns>the name of the commit object.</returns>
/// <exception cref="System.IO.IOException">the object could not be stored.</exception>
public ObjectId Insert(NGit.CommitBuilder builder)
{
return Insert(Constants.OBJ_COMMIT, builder.Build());
}