Apply patch by ovnicraft to use hashlib rather than sha module.

 * FIXES #9988
Fix typo in bridgedb.persistent module docstring.
Merge branch 'fix/9988-apply-patch' into develop
Update the contents and docs of README and .conf

Further describe some config options
Rearrange and regroup some configuration file options
Clarify end-user distributor usage
Merge remote-tracking branch 'tpo-sysrqb/develop' into develop

Conflicts:
	bridgedb.conf
Change hashlib.new() → hashlib.sha1() in bridgedb.Storage.
Merge branch 'fix/9988-rm-hashlibnew' into develop