Code style and white space in etc
Fix calls to ipsec_enabled() added in 179ab6b364
Eliminate a few more cases of $config['ipsec']['enable'].
Mostly when dealing with enc0 interface.
Retire PPTP server, fixes #4226:
- Remove PPTP server and all related code- Bump config version 12.2- Write upgrade config code to remove pptpd section and also cleanup firewall and NAT rules using PPTP interface or src/des
Move main pfSense content to src/