Unify syntax for columns and families

[Lemmsjid]

Column families require type parameters, whereas columns do not. For example:

//Define a family whose name is a String, whose Key Type is a String, and whose Value is an Int
family[String,String,Int]("myfamilyname") 

versus

//Define a column whose value type is a String
column(familyRef, "mycolumn", classOf[String])

The second syntax is cleaner because it makes everything explicit, esp if you use named parameters. So we'll upgrade families to use that syntax.