Replace Orion's email templates for registration, password reset, etc.

[jhpedemonte]

We are now using Orion's email APIs. Unfortunately, the Orion code uses its own mail templates and they cannot currently be (easily) overridden. See Orion bug 403261.

Until that bug is fixed, we have several options:

1. As part of the build step, overwrite the Orion mail templates with our own.
2. Use Java reflection to change the visibility of the private members in UserEmailUtil.java, which store the mail templates. Then, set them to our own.
3. Use AspectJ to dynamically intercept the API calls in UserEmailUtil.java and use our mail templates instead.

---

Tasks:

• Override Orion templates.
• Cleanup/additions to template text.

[jhpedemonte]

References:

• Using AspectJ for Accessing Private Members without Reflection
• Equinox Weaving - Using AspectJ with Equinox/OSGi bundles.
• AspectJ & PDE Build

[jhpedemonte]

Above commit adds our own email templates (located at maqetta.server.orion/emails). I made minimal changes from the Orion templates, mainly specifying "Maqetta/Orion" instead of simply "Orion".

Todo:

1. Is "Maqetta/Orion" fine? Or should we just use "Maqetta"?
2. Any other cleanup/additions to these templates?

Regarding (2), I think it would be good to add some text explaining to the user how they can change the generated password they receive when doing a reset (i.e. load Orion, go to profile page, edit password).

@JonFerraiolo

[JonFerraiolo]

1. Is "Maqetta/Orion" fine? Or should we just use "Maqetta"?

We should just say "Maqetta"