A heads up about the IdP V5 Installer

[Rod Widdowson]

The module changes which we have made to help users understand what has changed (IDP-2002 [1]) have allowed some significant
simplification of what the Installer can and has to do. 

This means that it becomes less useful to use any of the installer APIs outside the IdP (since anyone needing programming level
access will find it easy to start from a clean plate).

Thus, in V5 nearly all (and possibly all) the java code used to building our (non Windows) installer will be "impl" - that is to say
there will be no guarantee than any API will remain the same.  We do not envisage that this will cause any issues since we are not
away of anyone who has extended these APIs.

I should emphasise that we are NOT removing the support for "property-driven" Installs [2] which will be extended, although certain
capabilities removed (in favor of deploying a Module to do the work).

Interesting parties may wish to track the V5 Investigations [3] or any of the tasks in Jira [4]

[1] https://shibboleth.atlassian.net/browse/IDP-2002
[2] https://shibboleth.atlassian.net/wiki/spaces/IDP4/pages/1299611775/PropertyDrivenInstallation
[3] https://shibboleth.atlassian.net/wiki/spaces/DEV/pages/3212378113/V5+IdP+Installer
[4] https://shibboleth.atlassian.net/browse/IDP-2105

Thanks
	Rod