algebra, minor removed extra focus=true
click_on_letter_up, minor removed an extra import
algebra activities, renamed qml in CamelCase
memory-math-mult, minor typo
advanced_colors, renamed qml in CamelCase
click_on_letter, renamed qml in CamelCase
erase, renamed qml in CamelCase
leftright, minor change in comments
menus, removed ported activities
Change ballcatch keys to arrows because on Windows OSes, you do not have two events if you press the two shift keys at same time
money, initial port
First delivery for penalty activity.
Known bug:
-The sounds don't work on my installation (pb of multiplex)
Use of states
Same time limit than in the gtk version.
Some corrections
penalty, minor fixes

- added copyright author
- renamed help in instruction because it break the help in the bar.
- made the instructions be on top
penalty, minor indentation fixes.
penalty, added a timer to delay the bonus

- no more need to click on the ball to reset it
- on missing second click the ball is reseted automatically
penaly, minor, reordored includes.
penalty, added better android support

- no more rely on the background image for alignement.
- re-introduced the click on the ball to reset (only on loose case)
  to match what was doing the Gtk version and the instructions.
Added the activity : missing-letter

Conflicts:

	src/activities/activities.txt