Broken links fixed.
Merge pull request #28 from danielbayerlein/broken-links-fixed

Broken links fixed.
gitignore: ignore ".rbx/*"
Setup so-called soft dependencies properly
Warn about missing soft deps from Rakefile

Simplifies code a lot.
[GEM] Add "sinatra" and "random-words" as dev deps
README: add CI and gem badges
Gemspec: slightly amend description and formatting
VERSION: bump it

It's not the release, yet. I just want to distinguish HEAD from the gem.
RandomNameableSpec: use proper Bacon API for negation
Editor::RandomNameable: make each Ruby implementation happy
Rakefile: stop reinventing the wheel
Color256: refactor "#find_from_fixnum"

I have to refactor it, because Rubinius in 1.9 mode is unable to find a
colour in certain conditions (no idea, what's going on, but it does fail
every time: https://travis-ci.org/kyrylo/pry-theme/jobs/5096452).

The problem is the splat operator in block arguments. I couldn't
reproduce the issue outside of pry-theme, so screw it.