In the New Python Project wizards, enable linkage to existing source fol...

...ders.

In the New Python Project wizard for PyDev, Django, and Google App Engine projects,
add an extra page to allow selection of existing external source folders to include
in the project.

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You mentioned to me a while ago that adding external source folders to a project was a requested feature, so here it is. This is only the first part of what I've been working on; I just wanted to get some of it out to you before Monday.