+ removed ifdef, which was hiding the fact that ddedmn wasn't properly built
+ fixed linking libraries

This reverts commit 266a826f.

+ We should bump it in 2020, not before

This reverts commit eaa305a2.

+ service is installed in /etc/ so we can customize it without adding extra config files

+ use fnctl instead of file locking
+ fnctl is process dependent so close regardless of graceful exit

+ szarp-server and szarp-terminal already have this patch

* no units
* no short names
* small as possible distances between axes

* 5 graphs styles
* legend near short_names

+ add YYLMAX setting

+ it doesn't build on Debian Jessie

+ they don't build on debian jessie

+ on xenial the variable is not set