temporarily disable modem init from system
Merge pull request #178 from kmroz/disable-modem-rc

temporarily disable modem init from system
client: ignore interfaces with STARTMODE='off' flag set

Solution to: bnc#864444
client: exclude STARTMODE='manual' interfaces when ifup all

Solution to: bnc#864444
Merge pull request #179 from pwieczorkiewicz/startmode
compat: allow backends return complete config
client: fixed tags using HEADERS not EXTRA_DIST
Merge pull request #180 from mtomaschewski/ifcfg

compat: allow backends return complete config