Adds score variable to matched / sorted results and multi model support

[brez]

Makes the matching score available for use inside the instance.

[brez]

Just added this multi model support as well - tests written / all passing with rake test

[brez]

Looks like the CI is busted - here's my local result

Finished tests in 4.481758s, 12.9414 tests/s, 52.8810 assertions/s.

58 tests, 237 assertions, 0 failures, 0 errors, 0 skips

[dougal]

CI has been intermittently failing for some Ruby/Rails versions for a while. Not sure why, they always run fine locally.

The score instance variable patch is almost insta-merge, though I'm not sure about the name as it seems it might clash with other libraries or even user defined attributes. I'd prefer not to add yet more configuration for this, perhaps calling it search_score or something less generic.

I'll need to look at the Multi-Model patch more closely, but it looks great on first pass.

Thanks!

[brez]

Please see:

[master 0647300] changes score variable name to the less generic search_score

Also:

Finished tests in 4.481221s, 12.9429 tests/s, 52.8874 assertions/s.

58 tests, 237 assertions, 0 failures, 0 errors, 0 skips

[brez]

Should I just close this?