Release 1.1.3

Release 1.1.3

* Fix DSN rules when SMTP from is unavailable
* Fix statconvert routine to avoid lua module usage
* Set a sane quark for configtest to avoid NULL to be printed in logs
* Support c11 if available
* Fix parsing of ip:port strings
* Add more diagnostic for lua subr errors
* Fix task:set_from_ip lua method
* Add basic routines for digital signatures
* Add tool for digital signatures
* Add plain open file API method for atomic open
* Fix parsing nested braces inside logger vars
* Pre filters now actually skip processing
* Add pre-filter mode for multimap
* Switch to apache 2 license

Signed-off-by: Vsevolod Stakhov <vsevolod@highsecure.ru>