Add support for remembering network state

BUG: 338558
Change-Id: If37d135d04ad25d8155cc6e5c68e32e0e1a9ee97
Do not update network prefs during reconfiguration

Change-Id: Ie1c2afc911c4b5a8a59fee81833d547b75d2827d
Centralize network policy handling

The defaults are now configured on a single place, and strings are used
in the config file.

Change-Id: I0230e2b0d96f5e29bfae805d55b3b61009a02953
SVN_SILENT made messages (.desktop file)
Merge changes I0230e2b0,Ie1c2afc9,If37d135d

* changes:
  Centralize network policy handling
  Do not update network prefs during reconfiguration
  Add support for remembering network state