better manifest format

[bollwyvl]

i am in favor of a plainer-text format for the manifest. this is an opportunity to do better than ivy/repo.

Alternate formats

YAML

like skdb's. the diffs are much awesomer, more hand-editable...

YAML-RDF, N3/Turtle

very diffable (text-wise, but also graph-wise), searchable, and the world doesn't need another xml schema.

BAD

though would introduce a dependencies on non-stdlib. sad. however, we should be pip installable anyway.

Implementation

perhaps a plugin structure for manifest? the core code shouldn't be monkeying with xml/rdf anyway.