…ource objects—when using `<source>` or `src()`.

This is needed for source retrival for two use cases:
- preroll
- resolution switch (kind of)

Currently there is no way of accessing the source object for any DRM specified content. Plugin access only has API methods to `currentSrc` and `currentType`.

This will allow for `currentSource` and `currentSources` to return unverified source object(s).

# Conflicts:
#	src/js/player.js
#	test/unit/player.js

…urce, have the current sources be set to null.

When the `currentSources()` are called after `src('http://example.com')`, expect the `currentSources()` to only return the newly set source.
This way sources, via `<source>` or `src([...])` list, should never be out of sync when redefining a single source.

Updating tests to specify behavior changes. Remove autoplay from fixtures to bypass `loadTech()` ramifications.

# Conflicts:
#	src/js/player.js
#	test/unit/player.js

…Source` to return `{}` when `src` is `''`.

NOTE: these tests only pass because they are hitting the `cache_`.

- Fix tests
- Add method to `TechFaker`