[DF-291] Add IsOnScreen() method to LUA api.
Merge branch 'development' of https://github.com/abaradulkin/dava.framework into development
Merge branch 'development' of https://github.com/dava/dava.framework into development
[DF-291] Fix IsVisible()
Merge branch 'development' of https://github.com/abaradulkin/dava.framework into development
Merge branch 'development' of https://github.com/dava/dava.framework into development
Revert "[DF-291] Fix IsVisible()"

This reverts commit 8dc695f840af989d41f8fc1443308d0bb8818199.
Merge branch 'development' of https://github.com/dava/dava.framework into development
Merge branch 'development' of https://github.com/dava/dava.framework into development
Merge branch 'development' of https://github.com/dava/dava.framework into development
[DF-291] Add WaitControlBecomeVisible()
Merge branch 'development' of https://github.com/dava/dava.framework into development
[DF-291] Improve WaitControlBecomeVisible
Merge pull request #252 from abaradulkin/development

DF-291 added 1 method to autotesting lua api