fixed validation of user input in formatter
Merge pull request #128 from buren/Exception_fixes

fixed validation of user input in formatter
fixed regexp in laptimelimitbutton
Merge branch 'master' of github.com:buren/enduro into Exception_fixes
Merge pull request #129 from buren/Exception_fixes

Exception fixes
regexp in laptimelimitbutton fixed
Merge branch 'master' of github.com:buren/enduro into Exception_fixes
Fixed story 18
Merge pull request #131 from buren/Story18Fix

Fixed story 18
Merge pull request #130 from buren/Exception_fixes

Exception fixes
Fixed merge conflict