Development deps in Gemfile

[olleolleolle]

This PR moves the development dependencies to the Gemfile.

• move development dependencies to Gemfile (where there's platforms annotation support and ruby version identification - upcoming versions of Bundler will not need this last annotation)
• update the Bundler version to latest, in Travis build step before_install, so that the smarts keep working
• made Gemfile Rubocop-compliant

[grape-bot]

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  <td>:book:</td>
  <td data-sticky="false">We really appreciate pull requests that demonstrate issues, even without a fix. That said, the next step is to try and fix the failing tests!</td>
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	1 Message

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[kzaitsev]

Hello, thanks, any reasons why we need this?

[olleolleolle]

@Bugagazavr Oh, you're welcome.

The good part is that this uses the Bundler DSL to match and select versions and platforms (which it already does, partially).

Now, by adding the ruby RUBY_VERSION annotation, the if conditional for finding a version matching exactly the rvm-selected Ruby under test is no longer needed. The ruby version annotation in the gemfile assists Bundler's quest for the right list of gems to lock on for the current Ruby version.

Conditionals like this:

if RUBY_VERSION < '2.2.2' 

[LeFnord]

thanks @olleolleolle for the improvement

@Bugagazavr … I'm fine with it

[LeFnord]

please can you re-add it above your entry

[olleolleolle]

Oh, of course.

[olleolleolle]

There

[LeFnord]

sorry, my fault, meant after

[LeFnord]

👍

[LeFnord]

@olleolleolle sorry … let it us it was in your first commit, I will have an eye on

[olleolleolle]

@LeFnord If it pleases you, I can squash the commits to a single one.

[LeFnord]

Thanks again, will do it later, when I am on my machine