parameterize managehome instead of hardcoding to true

[mmckinst]

some people want to preserve deleted user's home dirs

FYI, puppet defaults to false for managehome

[mmckinst]

thinking about this some more, you might want to set the default to true if thats what people are expecting from the module but it should at least be a parameter since some people might want to keep old home directories or do something with them before deleting them

[mcanevet]

@mmckinst this will change the default of the module, please use true as default

[mmckinst]

@mcanevet updated

[mcanevet]

@mmckinst thanks