minor fixes

Signed-off-by: Petar Koretic <petar.koretic@sartura.hr>
reorganize files and methods

Signed-off-by: Petar Koretic <petar.koretic@sartura.hr>
valid session-id is defined as uint32 > 1

Also buffer hello_message in one function call and rename it.

Signed-off-by: Petar Koretic <petar.koretic@sartura.hr>
don't advertise unsupported capabilites

Signed-off-by: Petar Koretic <petar.koretic@sartura.hr>
netconf: add functions for rpc_error handling and capabilities reading

Signed-off-by: Petar Koretic <petar.koretic@sartura.hr>
fix tipfeler

Signed-off-by: Petar Koretic <petar.koretic@sartura.hr>
freenetconfd: print file information when logging

Signed-off-by: Petar Koretic <petar.koretic@sartura.hr>
move session-id creation to methods

Signed-off-by: Petar Koretic <petar.koretic@sartura.hr>
improve message parsing and creation

Signed-off-by: Petar Koretic <petar.koretic@sartura.hr>