Improved win32 build instructions. Added "--with-openssl-opt=no-asm" argument which is required since OpenSSL 1.0.2, as OpenSSL started to use assembler by default in 1.0.0 and then broke builds with MASM in OpenSSL 1.0.2 (ticket #1396). While here, added "--with-debug", added missing "--http-scgi-temp-path" and "--http-uwsgi-temp-path", updated OpenSSL to 1.0.2l, switched to slightly more readable one-argument-per-line style in configure example, added indentation to continuation lines, removed useless "--builddir=objs" argument ("objs" is the default), and removed useless "-f objs/Makefile" argument in nmake (nginx generates appropriate Makefile in the current directory).

API_HEAD=../xml/en/docs/http/ngx_http_api_module_head.xml

../xml/en/docs/http/ngx_http_api_module.xml:				\
		nginx_api.yaml						\
		yaml2xml.py						\
		$(API_HEAD)
	cat $(API_HEAD) > $@
	./yaml2xml.py nginx_api.yaml >> $@
	echo "</module>" >> $@

.DELETE_ON_ERROR: