Upgrade kilt

[veelenga]

Description of the Change

We have a dependency resolution problem: crystal-community/crystal-ann#58

This change should fix it and bring latest kilt features to Amber :)

Diff v0.3.3..v0.4.0.

[veelenga]

There is one test failing on travis:

 1) Amber::CLI::MainCommand::Generate scaffold generates and compile generated app
 Failure/Error: File.exists?("bin/#{TESTING_APP.split("/").last}").should be_true
 Expected: true
 got: false
 # spec/amber/cli/commands/generator_spec.cr:16
Finished in 9.66 seconds
327 examples, 1 failures, 0 errors, 0 pending
Failed examples:
crystal spec spec/amber/cli/commands/generator_spec.cr:7 # Amber::CLI::MainCommand::Generate scaffold generates and compile generated app

because test_app still depends on Amber 0.3.0, which depends on kilt 0.3.3, so there is a dependency resolution problem. That test should be automatically fixed once you bump a version or prepare a new release.

Any suggestion how to let the build to pass before the merge?

[elorest]

Probably just merge in right before we release next.

[veelenga]

Closing this in favor of #319