Changes in 7.53.1 - February 24 2017

Bugfixes:

• cyassl: fix typo
• url: Improve CURLOPT_PROXY_CAPATH error handling
• urldata: include curl_sspi.h when Windows SSPI is enabled
• formdata: check for EOF when reading from stdin
• tests: Set CHARSET & LANG to UTF-8 in 1035, 2046 and 2047
• url: Default the proxy CA bundle location to CURL_CA_BUNDLE
• rand: added missing #ifdef HAVE_FCNTL_H around fcntl.h header

Further