Update "DOWNLOAD" section

[app4soft]

Update list of YSFlight releases.

• https://ysflight.org/download/

Currently latest listed version is "YSFlight 20110207 RC" (February 7, 2011)

Many users after reading this list think that there no updates after 2011, but here are newest releases

YSFLIGHT releases (after 2011)

• http://ysflight.in.coocan.jp/ysflight/ysflight/e.html
  • "YSFLIGHT 20120701"
    • for Linux - http://www.mediafire.com/download/a4vxcv9m8rtm63w/ysflight-linux.zip
    • for Windows - https://www.mediafire.com/file/xaxk6g1un8r0g38/YsflightForWindows_%281%29.zip
    • for MacOS X - (not found yet)
  • "YSFLIGHT 20130805"
    • for Linux - (not found yet)
    • for Windows - https://drive.google.com/uc?export=download&id=0B-Ok3pCisiEMcWtWRmhTSExaYUE
    • for MacOS X - https://www.mediafire.com/?oza877tyy97471m
  • "YSFLIGHT 20150425"
    • for Linux - http://web.archive.org/web/20170524032344/http://ysflight.in.coocan.jp/download/YsflightForLinux.zip
    • for Windows - http://web.archive.org/web/20170604043639/http://ftp.vector.co.jp/65/24/3482/YsflightForWindows.zip
    • for MacOS X - http://web.archive.org/web/20170524204149/http://ysflight.in.coocan.jp/download/YsflightForMacOSX_R5165.zip

[app4soft]

Can't find by myself "YSFlight for Linux 20130805" and "YSFlight for MacOS X 20120701". Need help with those two builds.

[EricTendian]

Closing this as it's mostly fixed, pending a few really old builds from Soji.