(SUP-2545) Disable table maintenance by default

[m0dular]

Prior to this commit, the default behavior was to manage various
postgresql settings such as autovacuum frequency. However, this is not
possible during a PE upgrade because postgres is down.

[puppet-community-rangefinder]

pe_databases is a class

that may have no external impact to Forge modules.

This module is declared in 0 of 576 indexed public Puppetfiles.

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These results were generated with Rangefinder, a tool that helps predict the downstream impact of breaking changes to elements used in Puppet modules. You can run this on the command line to get a full report.

Exact matches are those that we can positively identify via namespace and the declaring modules' metadata. Non-namespaced items, such as Puppet 3.x functions, will always be reported as near matches only.

[MartyEwings]

Nice catch, looks simple enough to me,

We may need a better way to handle this in future so something to think about for another release

Can you put a few lines in the docs on this one? @m0dular