Integrated kcptun, ss-local 2.5.6

Change List:

• Update ss-local from shadowsocks-libev to 2.5.6
• Add new crypt methods from 2.5.6
• Integrated kcptun
• Optimize main menu
• Fix launch at login
• Fix applying pac
• Add copy context menu on QRCode panel
• Shortcut to switch proxy modes
• Encode ota and remark in QRCode
• Add duplicate context menu in server profile list.

Checksums

sha256

21204793b48f96049c7f22a20bedf9e8c563a58d5e7b4e5e64c0e403910e30cd  ShadowsocksX-NG-1.4-beta.zip