Make import forward-compatible: ignore not yet known properties
(#4, #12)
Correctly handle "options.logViewer" preference in Gecko 13 and older
(#11)
Clarify logic in parseOptions()
(#4, #12)
Add %cl_ProfDrv% alias for root directory of %ProfD%
(#11)
Remember last export directory
Also used %cl_ProfDrv% for better portability
(#12)
Don't save "options.exportDirectory", if expanded path isn't changed
(to not override, if used custom alias)
(#12)