equilibrage bots
self fight bug fix
edit entity sql
edit tests (with stats)

@TODO
add Mathematical bonus random. close #41
clean math
add tests (bonus random)

@TODO levels
fix error

Bonus id into XML file
doFight class
delete comment
edit & add bonus into DoFight
edit var declaration
test class full commented
edit @author Georges
edit sql random Bonus
fix too fast fight ..
grouping VS button
bonus win/loses fix
ui > ServerMath refactoring
test sequence fix