v3.3.0

b77d83c uh_connection: remove api: free
15c2b53 example: ignore SIGPIPE
9410e7e Support reply data defered
17f7ccf Fix bug: parse error while buffer realloced
96ef9bc Don't const for 'struct uh_str'
9570dda Support 'Connection: close'
28c8146 Optimize code and fix gzip encoding
87a209c conn_get_header: ignoring case
e02e9b0 Set UHTTPD_MAX_HEADER_NUM to 50
30729cf Fix bug: Parsing error for fragment data
fbcf45a Merge pull request #10 from neheb/patch-1
e5021c6 file: define _FILE_OFFSET_BITS to 64
f8d348d Fix bug: Parsing error for fragment data