Added HTTP OPTIONS support:

     - added options to minilex.c
     - regenerated lextable.h
     - added WSI_TOKEN_OPTIONS_URI to libwebsockets.h
     - tweaked parsers.c to accommodate OPTIONS token
     - tweaked server.c to set uri_ptr and uri_len for HTTP callback on OPTIONS as well
fix build on OpenBSD
dont free externally allocated user_space when closing connection

Signed-off-by: Andy Green <andy.green@linaro.org>
partial send handling
fix confusion ull in latency reporting
add runtime context flag to enforce defeat of OS CA CERTS even if build option selected

Signed-off-by: Andy Green <andy.green@linaro.org>
Trac 75: fix uxexpected ssl connection close
test server dumb increment fix once per second duplicate

Signed-off-by: Andy Green <andy.green@linaro.org>