mrun 0.5.1

Other

• docs: Stop suggesting mrun share a folder with mshell (c2c3288)

  The Updating section and a manual test described leaving generic files alone
  as protecting a folder mrun shares with mshell.exe. mrun belongs in a folder of
  its own, such as the install script's, so the docs now say that instead, and
  the manual test no longer names mshell.