Revert "Initial commit"

This reverts commit 3d6abdc5022b6fbe1a8fb8034ef1d4502b4e4552.
Revert "Revert "Initial commit""

This reverts commit 83087ba16482650575462758ee001d85e7190f71.
Revert commit
Merge branch 'master' into konrad
Dodanie metody onButtonClick i podpiecie jej w xml