merge r3153, r3154, r3288, r3382: request header processing fixes: *) $host is always in low case: *) move low case convertation from ngx_http_find_virtual_server() to ngx_http_validate_host() *) add in ngx_http_validate_host() capability to copy host name in the pool allocated memory *) fix segfault if there is single large_client_header_buffers and a request line fills it completely *) default large_client_header_buffers' buffer size should be 8K as compatible with Apache's one

GNUmakefile, in svn it is available since 0.4.0 only.


make -f misc/GNUmakefile release

the required tools:
*) xsltproc to build CHANGES,
*) java and XSLScript ( http://pault.com/pault/XSLScript/ ) to build XSLTs
   from XSLScript sources.


make -f misc/GNUmakefile icons

the required tool:
*) netpbm to create Win32 icons from xpm sources.