ALII-4573 lwIP close always returns

Signed-off-by: Mike Stitt <mikes@spindance.com>
ALII-4573 add option defaults to opt.h

Signed-off-by: Mike Stitt <mikes@spindance.com>
Fix compile error.

Signed-off-by: Mike Stitt <mikes@spindance.com>
Merge pull request #2 from spindance/bug/4573CloseAlwaysReturns

Bug/4573 close always returns