Description of problem:
Where is the old xmlrpc documentation for BZ5.0

Since BZ5.0 still support the xmlrpc, it will be obsolete in BZ7.0,  I am afraid that customers want to research the documentation of xmlrpc, like: 
https://bzperfweb01.app.qa.eng.nay.redhat.com/docs/en/html/api/index.html

Version-Release number of selected component (if applicable):
5.0.2-rh4

How reproducible:
100%

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