add reload button
followline, initial port of the Gtk+ version
mining, initial port from the Gtk+ version

It if fully working but misses the live tutorial
mining, complete rework

No more use the layout to determine the zoom area
Works on Android now.
align4, AI review
updated AI
backup sync
fixed bugs in align4-single player and added reload bar button
click_on_letter: play letter sound of clicked letter

This facilitates letter-sound associations for letters that sound
similar.
click_on_letter: improve letter positioning in carriages
memory, added rotation animation and dataset
memory, minor code cleanup (comments and indent)
memory, major refactoring

Now the memory engine no more analyse dataset content to find matching pair.

The caller of the memory now must provide a dataset that contains for each
level the list of images, texts and / or sounds.

Made all the math memory to be based on math table from 1 to 10.

Now the memory span the whole screen.

Improved scoring system, added an icon from openclipart to represent the
user.

Much simplified code for the memory core.
memory, implemented an AI for tux

The AI includes a random to make Tux fails randomly.
memory-wordnumber, ported from the Gtk+ version

The background imange comes from openclipart.org
memory-sound-tux, porter from the Gtk+ version
memory-wordnumer, minor extra import removal
memory-enumerate, ported from the Gtk+ version
RELEASE 0.14
memory, better passing of the colums