Fixed Model's internal ROWID acquisition. Updated examples to reflect.
Regenerated javadoc.
Changed rowid and associated methods to long.
Added PROJECTION constant to pass in queries as projection[] or
columns[], to make sure that ROWID and all the Model's columns are
included.
Edited javadoc for Model.Factory.listFromCursor() to say that the Cursor
will be read from its current position onwards, not from the beginning.
Regenerated javadoc.