am 4195d097: am 8ad86fef: Merge "Improve documentation of getAltitude" into gingerbread

Merge commit '4195d097c535acf9e1c60b323134fcb5609c18b7'

* commit '4195d097c535acf9e1c60b323134fcb5609c18b7':
  Improve documentation of getAltitude