Remove Perforce from the documentation tree.

[gordon]

Summary

Remove navbar reference.
Remove p4-primer.
Remove references from committer-guide.
Remove reference in the other development guides.
Remove the Perforce administration team.

[bjk]

Looks good other than the potential build issue (which I did not test).

en_US.ISO8859-1/articles/committers-guide/article.xml

871

I think the current style would prefer writing out "Subversion" instead of the SVN acronym, but that's orthogonal to your change.

And in fact the need to give advance notice of file editing is so uncommon these days that I would be okay with removing this paragraph entirely (but do not insist upon it).

en_US.ISO8859-1/books/dev-model/book.xml

2058

Normally we would leave "developed" on the second line so as to only have one line changing, to help translators.

en_US.ISO8859-1/share/xml/teams.ent

40

This might need a build-test, in case the entity is used in any translated documents.

[gordon]

en_US.ISO8859-1/articles/committers-guide/article.xml

871

I would agree on the above points, but I think it would be better done separately.

en_US.ISO8859-1/books/dev-model/book.xml

2058

Reverted.

[gordon]

Address feedback from bjk.