Add Reline as a fallback library for Readline

* lib/reine.rb, lib/reline/*: Reline is a readline stdlib compatible
  library.
* lib/readline.rb: Readline uses a fallback to Reline when ext/readline
  doesn't exist.
* tool/sync_default_gems.rb: add ruby/reline as a default gem.
* appveyor.yml: add "set RELINE_TEST_ENCODING=Windows-31J" for test suit
  of Reline, and add "--exclude readline" to "nmake test-all" on Visual
  Studio builds because of strange behavior.
* spec/ruby/library/readline/spec_helper.rb: skip Reline as with
  RbReadline.

1 files changed, 25 insertions, 0 deletions

diff --git a/lib/reline/reline.gemspec b/lib/reline/reline.gemspec
new file mode 100644
index 0000000000..b8e96d6613
--- /dev/null
+++ b/lib/reline/reline.gemspec
@@ -0,0 +1,25 @@
+
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'reline/version'
+
+Gem::Specification.new do |spec|
+  spec.name          = 'reline'
+  spec.version       = Reline::VERSION
+  spec.authors       = ['aycabta']
+  spec.email         = ['aycabta@gmail.com']
+
+  spec.summary       = %q{Alternative GNU Readline or Editline implementation by pure Ruby.}
+  spec.description   = %q{Alternative GNU Readline or Editline implementation by pure Ruby.}
+  spec.homepage      = 'https://github.com/ruby/reline'
+  spec.license       = 'Ruby License'
+
+  spec.files         = Dir['BSDL', 'COPYING', 'README.md', 'lib/**/*']
+  spec.bindir        = 'exe'
+  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
+  spec.require_paths = ['lib']
+
+  spec.add_development_dependency 'bundler'
+  spec.add_development_dependency 'rake'
+  spec.add_development_dependency 'test-unit'
+end