Update credits file to v5.3 info
Update credits file to v5.3 info

Also, reverse the list of past contributions, so more recent is always higher.

sneezymud/sneezymud,sneezymud/sneezymud,sneezymud/sneezymud,sneezymud/sneezymud,sneezymud/sneezymud,sneezymud/sneezymud,sneezymud/sneezymud