introduce "Authorization" header name and Request::isStatusSuccessful() auxiliary method
local DNS cache introduced
use binary log file to prevent replacement of '\n' to '\r\n' on Windows
the way that resolve information is displayed has been changed - one line is used now
json::toStrHH() function has been introduced which writes JSON value without quotes if possible
simple string should consists of [A-Za-z0-9_] only

force empty strings to have quotes
json simple string cannot be empty!
ulr_encode()/url_decode() and base64_encode()/base64_decode() functions have been moved to the misc.hpp file

also the URL encode algorithm has been changed
minor changes - some code movings
name cache code of http::Client moved into separate inner class
HTTP module refactoring: now send() methods returns the Task instance

using this Task instance it's possible to subscribe to "done" event
update cloud6 to new HTTP client
bug fix: infinite loop in cancelAll() method of http::Client
support for "No Content" responses