Changes since 2.6
* Fixed a bug that horizontal line <hr> was not displayed when
terminal was set to utf-8
* Fixed bad palette in framebuffer on TGA on Alpha
* Fixed a bug that \001 was displayed instead of a non-breaking space
when converting to ascii
* Support IPv6
Support multiple addresses (try to connect to all of them)
* Fix memory leak in ftp
* Fixed incorrect display when aspect ratio was changed
while multiple windows were open
* Fixed a bug that blocked URLs didn't work if proxy was used
* Support extended coordinates in xterm mouse reporting,
avoid previous limit 222 on maximum possible coordinate
* Use enter to scale image
* PMshell driver was hacked to support also Win32 api
* HTTPS proxy
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