Always send ACK after PUSH packet
Make add_flags global available as tcp_add_flags
Initial version of web server
Fix pointer to first data byte in tcp callback
Add info/debug_string_n to output string length n
Add methods to fill buffer_out from buffer_in/string
Add missing TODO
Add missing pgmspace include
Send not found content on 404
Get http method and path from header
Fix spacing
Update Makefile
Use path to find callback for a request

Allows to register a callback on a path, remove a callback for a
path, lookup a callback and match paths.
Break up www_server_reply and make buffer methods public
Change indenting to 2 spaces
Change content-type filling to single line if's
Rename www_server_buffer_add* to www_server_reply_add*
Remove length from path service callback
Add example callbacks for www_server
Merge branch 'feature/www' into develop