BeginIf/BeginIfNot/EndIf directive

Begins/Ends the If section.
BeginIf makes parser parse the directives inside the If section if the expression is true, otherwise makes it ignore them.
BeginIfNot is same with BeginIf, but makes it parse if False instead.

Syntax: BeginIf True|False|defined name
Syntax: BeginIfNot True|False|defined name
Syntax: EndIf

# Notes on defined names

HAS_CHROOT gets defined if Tewi HTTPd was compiled with chroot(2) support.
HAS_SSL gets defined if Tewi HTTPd was compiled with TLS/SSL support.