Bump multi_test.

Should fix #501
Release 1.3.5
Legal issue at README.md

As explained at commit facb2e13fcda8ed59764f25e59f0a272426c9362.
Same legal issue than README.md
Add spike binary that integrates with new 2.0 core.

This commit represents a major milestone. We can now run
(some of) Cucumber's own tests using the new core, with this
spike front-end.

Try it!

```
./bin/cuke features/docs/getting_started.feature
```

We now need to work our way through Cucumber's features until
we can run all of them using this front-end, gradually adding new
features to Cucumber-Core as we need them.

Once all the tests are passing and we know the core at least supports
the features needed to run Cucumber's own tests (but still running them
against the current stable version of Cucumber), then we can start
trying to integrate it with the real front-end, and running the tests
against the new code itself.

@tooky @os97673 let's get to it!
Simpler formatter
Don't print exceptions - too noisy
Incorrect help text was bothering me.
Merge pull request #512 from pikesley/docfix

Incorrect help text was bothering me.
Modify bin/cuke to work with the new core
Use new location to show location of failed scenario
Add exception to failure summary
Improve output from the spike
Modify spike to work with new filter API
Remove autoformat functionality.

@mattwynne it was the autoformat feature that was breaking the colouring.
I noticed a #TODO to remove it, so I did. Should we add a task to support using
gherkin to do this?
Merge pull request #508 from ayr-ton/master

Making the license more legible.
Fixed #493: sometimes tables is just table not part of outline and should not used to calculate scenario's status
Fixed name of the tag for 1.3.5
Release 1.3.6
minor history reformatting