base

am 3bcdbd6b: am 6fda5415: am 709dca44: am fb214e6b: am 3032999b: Merge "Update to the Taking Photos Simply lesson (offshoot of the intent doc rewrite) clarifications about different external directories, information about required permissions, intent resolution techni

* commit '3bcdbd6b2d96427d7cee835e9ed79aeed51de267':
  Update to the Taking Photos Simply lesson (offshoot of the intent doc rewrite) clarifications about different external directories, information about required permissions, intent resolution technique to match other docs, clarify section headings, plus other code clarification