A Ruby script to start shoes4

* can be used as the executable of a gem release
* does not depend on the place it is started from, which I need to try to run
  hacketyhack as hackety sadly depends on where you start it from
* I think that this is the simplest possible ruby script to achieve this :-)
Added an adjusted version of simple-draw.rb

* refer to #268
* fixes #268
* the append in there is not necessary (it also works with this version on
  the old shoes version). Will open a new issue to figure out if we want this
  behaviour for backwards compatibility or not.
Add Faraaz's email to Travis CI recipients
Merge pull request #274 from fism88/master

Add Faraaz's Email to List of Travis CI Recipients
Improve TextBlock to accept a hex code color. This is a test snippet.

Shoes.app do
  para 'hello shoes', stroke: "#fda"
end
Rake task to create list of non-working samples
refactoring the samples Rakefile code
output list of non working samples in the console instead of writing them to a file
README note about the rake tasks to run samples or non working samples
More Rakefile samples duplication removal

* extract a method that runs a given sample, no more duplication jay!
Merge pull request #269 from PragTob/ruby_shoes

A Ruby script to start shoes4 - find it in bin/ruby-shoes