Remove schemas dir prior to re-adding as submodule
Add schemas as submodule

...and update references to schemas path (which is now schemas/schemas).

NB simple_openc_bot_spec is currently failing because, I think,
schema is no different. Need to check with @sebbacon to find out
which is correct
Remove extraneous submodule ref
Fix simple_openc_bot template/specs after update to openc_schema
version bump, so old bots can use old simple licence schema
tweak submodule ref to try to get Travis passing
Remove redundant folder
Fix odd Travis CI failure

See https://github.com/injixo/time_frame/commit/c907d72c729afbcaa4691729cc7b79d4af9e6187
Merge pull request #45 from openc/schema_as_submodule

Schema as submodule