webui: Switch to Asus's PPTP/OpeNVPN Server pages
webui: remove VPN switcher from pages, as we keep them as individual tabs for consistancy
openvpn: Replace gitignore with upstream's

Remove untracked files.
libiconv: cleanup untracked files, fix permissions

Also update gitignore
webui: Implement support for running pptpd and openvpn at the same time
webui: hardcoded this page to pptpd, since we support both types simultaneously
webui: switched to Asus's OpenVPN server page; added support for second server instance; allowed to run simultaneously with PPTPD
webui: updated VPN tabs visibility based on available features
Updated documentation
Merge pull request #796 from saintdev/build-cleanup

Fix build issues
webui: remove unused code
vsftpd: Properly compile with SSL support if OpenSSL is available
openvpn: Upgraded to 2.3.6