erase, made the square less transparent

It makes the game more engaging if the animal image is less
visible at start.
translations, updated automatically from the Gtk+ version
remove hard-coded font names, load them using QDir and filter, add filter to remove *ding*/*symbol* fonts
concat didn't work as expected... good removing of symbol fonts
use default androiddeployqt for android compilation
mining, fix to zoom properly around the requested area

fixme, could not make the click on the gold nugget to work on
android.
mining, removed debug logs
followline, rewrite the drawing of the hose parts

Now this is done with createComponent which let us position items
more easily.
followline, minor removed debug code
gletter, replaced sound effect by sound letter

It is more educational to play the sound of the letter entered
by the user. It associate the typed letter and its audio.
dialog config, replaced cancel icon by apply icon
football, no more keep the red line drawn on android
football, better management of Tux collition
guessnumber, better text layout, level up to 1000
magichat, better positionning of the operator
dialog, minor layout improvements.
voices, added a clearQueue() function on GCAudio

This is called when before we call the start of an activity.

This is called in next/previous level of click on letter to flush
the audio queue.
enumerate, minor improvements

- removed too narrow items that are hard to grad on touch screen
- less items in upper levels
- no more shrink item following levels as they are hard to grab
memory, use a flipable item for the card

This removes a lot of useless code and now we display
the front empty card.
Added current_alphabet function which returns current alphabet