Typos from history GCompris (#1087)

* Add backgroung->background

* Add adpapted->adapted

* Add androidextra->androidextras

* Add backgound->background

* Add butons->buttons

* Add butterly->butterfly

* Add chararcter->character

* Add cleff->clef

* Add comor->color

* Add cuileoga->cuileog

* Add dispay->display

* Add ganbia->gambia

* Add geogcountry->geocountry

* Add heighteen->eighteen

* Add parellelogram->parallelogram

* Add ractise->practise

* Add simmetry->symmetry

* Add texchnically->technically

* Add timere->timer