jruby/warbler — pull request #177 by mpapis (2013-08-20 00:16:45+00:00)
Title: allow specifying executable to run including other gems executables

allow for:

- specify custom executable
- executable from other gems to be used
- default (prefixed) parameters for the executable
- improved content tests (use `.should =~ ...` instead of `.grep(...).should_not be_empty`)

example `config/warble.rb` (with a `Rakefile`):
```ruby
Warbler::Config.new do |config|
config.gems = [ "rake" ]
config.executable = ["rake", "bin/rake"]
config.executable_params = "do:something"
end
```