Hi
I don't know if some statistics are needed now but here they are. The
contributors graph underline clearly the loneliness John Schember is experimenting specially from the beginning of this year.
http://www.ohloh.net/p/compare?metri...ect_2=calibre#
What else? thank him for the huge work already done and for the current "life support" he still accepts to provide, because Sigil is now a very advanced piece of software (thank him also for the already achieved reliance of Sigil on Qt5, which is still a goal for many other open source projects)