Allow to specify only section name, host name is not required anymore and will be used only if specified explicitly.

You can now write something like this in client_config:

[general_settings]
dir = /home/nasretdinov

[host1.com]
[host2.com]
[host3.com]
;[host4.com]

And it will sync your directory to remote location "/home/nasretdinov" for all servers: host1.com, host2.com and host3.com, while "host4.com" is temporarily disabled