Fixed various issues reported by resharper. Added move constructors/move assignment operators to various classes. Exceptions cleanups. Removed unused code. Removed copy constructors/copy assignments from various noncopyable classes. (CH-318).
Added the possibility to specify own copy-of names for files as an alternative to the ones defined in translation files (CH-182). Changed default copy-of names in english and polish translations so that always start with %name instead of word "Copy".