Simplify wpa network block creation

It had grown a little diffuse.
Documentation update

Rebuild all the manpages because version information may have changed.

Add a few words on options that are ignored in some cases.
Support more interface types

This allows future connection types to use interfaces other than
networking interfaces, for instance to use USB interfaces.
Added ppp connection.

Ported from netcfg.
Added ppp mobile by porting from netcfg.
Revert "0.8 release updates"

This reverts commit 11a2b4d455d5d996b78a3fa5f72b6728b470338f.
Revert "Support more interface types"

This reverts commit 9ff72561e32ec6aa409f0c50757481a9032595ac.
Merge branch 'ppp'
Merge pull request #21 from zoqaeski/mobile-broadband

Mobile broadband with ppp
Uniformize modelines
Fix DHCPOptions

Split them into different variables for different clients.
Also, IP6 gets its own, so that it can have options different from the
IP4 invocation.
Merge branch 'mobile-broadband'.

Commit was accepted upstream.
Merge remote-tracking branch 'upstream/master'

Keeping up-to-date with upstream.
Removed ppp-mobile script.