[netcf-devel] Preparing for aditional drivers

Hello, This is the last set of patches before the amount of shared code between the SuSE-driver (in its current state, at least) and the current initscripts driver is almost nil. The last two patches were only discussed briefly, so I kept them at the end. Feel free to react, and note that it means that all "variables" in an ifcfg-file will get single quotes. The lens is however able to read unquoted variables from these files. For the SuSE-driver, I currently lack VLAN-support (which on SuSE is a mess in some aspects), and some tests. Hopefully, these things won't take long to fix. /Jonas