update docs

See merge request !32

update docs

See merge request !31

fix handling for issue with dns alias

See merge request !30

remove bak file

See merge request !29

optimize _wait_for_free_slot

See merge request !28

source  config file before showing help

See merge request !27

show dir in help output

See merge request !26

update text output

See merge request !25

Add http challenge

See merge request !24

faster check if certificate exists

See merge request !23

shorter sleep times

See merge request !22

6339 key and cert do not match

See merge request !21

skip function _fixKeyfile with former workaround

See merge request !20

update doc style

See merge request !19

remove unneeded sleep

See merge request !18

update _wait_4_free_slot and data in debug.log

See merge request !17

Track requests in a debug.log

See merge request !16

update repo url

See merge request !15