Fixed a couple more locale-dependent toupper conversions, mainly for

clarity.  This does fix one problem that causes ;type=i FTP URLs
to fail in the Turkish locale when CURLOPT_PROXY_TRANSFER_MODE is
used (test case 561)

Added tests 561 and 1092 through 1094 to test various combinations
of ;type= and ;mode= URLs that could potentially fail in the Turkish
locale.

lib/rawstr.h

@@ -35,6 +35,8 @@
 int Curl_raw_equal(const char *first, const char *second);
 int Curl_raw_nequal(const char *first, const char *second, size_t max);
 
+char Curl_raw_toupper(char in);
+
 /* checkprefix() is a shorter version of the above, used when the first
    argument is zero-byte terminated */
 #define checkprefix(a,b)    Curl_raw_nequal(a,b,strlen(a))