revert fb4f7ea2eb

Implement "Show Plugin Output" checkbox.

- Split the file operations to new PACDaemon
- More precise matching logic for handling PAC content http request

When error code is SocketError.AccessDenied/10013(WSAEACCES), the port is reserved by system and you may not find the process name in `netstat`.
 https://github.com/shadowsocks/shadowsocks-windows/issues/1835#issuecomment-453528715

Fix #2140

Auto register hotkeys

- Portable mode ON: executable file's folder
- Portable mode OFF: current user's temp folder

* Translation
* Environment Variables support

invalid URLs will be ignored

* Rename variable 'traffic' to 'trafficPerSecondQueue' and 'trafficInfoQueue'

* Remove class QueueLast<T> by using linq Queue.Last()

* Slight changes, such as rename, move several variables from function domain to class domain to improve performance.
Logic remains the same.

* Update the logic of copying queue from Controller to View.

* Move the TrafficInfo declaration into LogForm class

Overwise, the VS UI designer does not work.

Signed-off-by: Syrone Wong <wong.syrone@gmail.com>

This reverts commit 0d4d01af3b.

This reverts commit 5ba0dffa5d.

This reverts commit b04c59d8e6.

This reverts commit 566a0fcfa5.

No more http->socks5 transform.

Fix #926

Signed-off-by: Syrone Wong <wong.syrone@gmail.com>

Otherwise we will update proxy twice.