DF-4250 fixed fonts saving if folder UI/Fonts does not exist, clear fonts on close project
merged development 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
Merge branch 'development' of https://github.com/dava/dava.framework into development