[ruby/readline-ext] Version 0.1.0

https://github.com/ruby/readline-ext/commit/f5abaf5be1

ext/readline/readline-ext.gemspec

@@ -1,6 +1,6 @@
 Gem::Specification.new do |spec|
   spec.name          = "readline-ext"
-  spec.version       = "0.1.0.pre.1"
+  spec.version       = "0.1.0"
   spec.authors       = ["Yukihiro Matsumoto"]
   spec.email         = ["matz@ruby-lang.org"]