[network-manager-openvpn] (7 commits) ...merge branch 'th/ping-bgo651657'

[Thomas Haller <thaller src gnome org>]

Summary of changes:

  36e7772... defines: add the names of the ping/ping-exit/ping-restart o (*)
  fcde76d... service: use ping,ping-exit,ping-restart arguments (*)
  054cc99... properties: import/export the ping/ping-exit/ping-restart o (*)
  990d749... properties/tests: add tests for import/export of the ping/p (*)
  6afd16b... properties: import the keepalive option (*)
  bfb7388... properties/tests: test import/export of the keepalive optio (*)
  f5927b1... merge branch 'th/ping-bgo651657'

(*) This commit already existed in another branch; no separate mail sent