* fixed handling of misconfigured keystore
* added French (David Ruelle) and Polish (Zbig Wittmann) translations
* contact field can be specified from command line
* fixed wrong spelling of RenderMode.DESCRIPTION_ONLY enum instance (thanks to Jiri Lisicky for reporting)
* Added option to control which layers will be generated in visible signature (Acrobat 6 layer mode)
* Font size setting applied also for "Signature name and description" display mode as a maximal allowed size
* setting default OCSP server URL
* checking known critical extensions is disabled by default in conf.properties
* added some "well-known" certificate critical extension OIDs