release 2.0.0 version

lib/twirp/version.rb

@@ -12,5 +12,5 @@
 # permissions and limitations under the License.
 
 module Twirp
-  VERSION = "1.10.0"
+  VERSION = "2.0.0"
 end

protoc-gen-twirp_ruby/version.go

@@ -15,4 +15,4 @@ package main
 
 // Version is the same version in the ruby gem: lib/twirp/version.rb
 // It helps identify what version of the code generator was used.
-const Version = "1.9.0"
+const Version = "2.0.0"