ISIS-848: a simpler way to bootstrap Isis applications

[Dan Haywood <da...@haywood-associates.co.uk>]

Hi folks,

Just a heads-up that we now have a simpler way of bootstrapping Isis
applications, such that configuration is shared between integration tests
and the webapps, and moreover allows the configuration to be specified
programmatically (so is typesafe).

This particular change is optional - there's no need to update an existing
app to the new way - but is recommended.  The simpleapp archetype has been
updated to use the new approach.

For details see the migration notes [1], reference guide [2] and users
guide [3].

Cheers
Dan

[1]
http://isis.apache.org/migration-notes.html#_migration-notes_1.8.0-to-1.9.0_bootstrapping-using-AppManifest
[2]
http://isis.apache.org/guides/rg.html#_rg_classes_AppManifest-bootstrapping
[3]
http://isis.apache.org/guides/ug.html#_ug_testing_integ-test-support_bootstrapping