Cause: process's additional environment variables are not expanded
by correctly.

Innovated by studentmain (StudentEx <scncgz@gmail.com>)

Auto register hotkeys

- Naming
- Cleanup
- Move logic to controller

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

* Translation
* Environment Variables support

Add OpenSSL 1.1.0g support due to hardware acceleration

Note: If you want to compile it by yourself, please make sure
do NOT use `no-asm` configure option, since the main point of
this commit is to utilize assembly in openssl

Add OpenSSL test

SIP003 server port validation
Year 2018

When saving user-rule.txt file, some text editors can raise FileSystemWatcher event twice.
The 1st time is blank content, then the 2nd time is the modified content.

Put user rules at the begin of the PAC file.

This might fix 500 Privoxy Internal Error: no-server-data

Fix: #1468
Enhance: 46d40fec67

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

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

invalid URLs will be ignored