Do not worry about creating backup directories here
catch and report missing skins configuration files.
Remove application.default-style from the global configuration screen and activate it in the skins configuration.
change the FileUtil.createDirectory calls to catch an exception on error.
Fix bug where skin configs don't read backup properties correctly for checkboxes.
Implement form submittal processing.
Add GeneralPropertyException to property setters
Merge 1.9 changes into Head