[aravis] (17 commits) ...viewer: add an application icon.

[Emmanuel Pacaud <emmanuel src gnome org>]

Summary of changes:

  ad32efc... genicam: WIP for error handling. (*)
  ecab15a... genciam: error handling WIP. (*)
  682c70a... genicam: error handling WIP. (*)
  2ea6fd4... genicam: error handling WIP. (*)
  594ba76... genicam: error handling WIP. (*)
  a6adaaa... device: error handling. (*)
  61fd4db... Ssshhh... (*)
  5025022... gv_interface: plug memory leak. (*)
  500b2f6... gc_integer_node: add missing semicolon. (*)
  8f80acf... Remove blank line. (*)
  3057c94... gv_device: actually report communication error. (*)
  dcfc88e... viewer: get window xid once, when the drawing area is reali (*)
  a7ff9cd... viewer: avoid deprecated API. (*)
  9b23800... build: add missing version requirement on gstreamer-base. (*)
  1a482f7... viewer: avoid flickering by disabling double buffer of the  (*)
  721ddbb... viewer: have different ui files for gtk2 and gtk3 viewer ve (*)
  6a908b8... viewer: add an application icon. (*)

(*) This commit already existed in another branch; no separate mail sent