Removed isRunning from OpenVpnService.

We use the broadcasted eip status from ics-openvpn to know if we're
connected or not.
Removed setDefinition from ConfigParser.

We now directly use the parseConfiguration method, translating the
eip-service.json openvpn options to a string containing the
corresponding openvpn config file lines.
Removed the authentication bits from VpnProfile.

Now we embed the openvpn cert, the corresponding ca cert and the user
key directly from EIP, while creating a vpn profile. We leave VpnProfile untouched.
Updated ics-openvpn-upstream: less patches of ours.
Merge branch 'feature/refactor-bitmask-android-to-use-newer-ics-openvpn-features/methods-#5709' into develop