Sean Dague 2c65e71ab8 Implement devstack external plugins ...

This is an initial pass at plugin infrastructure for devstack which
allows specifying an external repository via:

enable_plugin <name> <giturl> [branch]

It implements the devstack specification for this at
I173dee3d57967b1d2ffd30e4868a2832aeac97ce

Change-Id: I8e4175313b3cf0b12e981122358b1288a7eb0746

2015-01-06 12:30:25 -05:00

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Implement devstack external plugins

2015-01-06 12:30:25 -05:00