Context

When using Joomla! versioning feature, we are able to fix a number of history limit in configuration.

Actual limitation

This history limit is only applied of the component context eg: com_banners.
If you want to got (wanna keep using banners component for exemple) only 10 history limit for banner and 5 for client (dunno if this could be real) this is not possible.

And now?

Adding another context, eg:

<field
    name="history_limit.banner"
    type="text"
    filter="integer"
    label="JGLOBAL_HISTORY_LIMIT_OPTIONS_LABEL"
    description="JGLOBAL_HISTORY_LIMIT_OPTIONS_DESC"
    default="5"
/>

This possibility could help in third application (got some component who need this new feature), also maybe in actual joomla component; just want to know (got some feedback) if people agree with that.
Or maybe im wrong and there is another way.

Code

Contenthistory Helper
To

// Load history_limit config from extension.
$aliasParts = explode('.', $this->typeAlias);
$context = (isset($aliasParts[1]))?'.'.$aliasParts[1]:'';
if ($maxVersions = JComponentHelper::getParams($aliasParts[0])->get('history_limit'.$context, 0))
{
    $historyTable->deleteOldVersions($maxVersions);
}

PLUS checking if only get('history_limit', 0)) for B/C