Add planegame activity
Planegame activity, better error logs.
planegame, removed timer for clouds. Change text color/font size.

Good path for the sound
planegame, addd copyright info.
planegame, less rotation for the helico
Added memory
Added initial version of memory-sound

Added support for memory sound in existing memory activity.
Imported memory-sound from the Gtk version.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	GCompris.pro
	src/activities/memory/CardItem.qml
	src/activities/memory/Memory.qml
	src/activities/memory/memory.js