[build] redo release task helper for jdbc gems

Author: kares

Rakefile.jdbc

@@ -17,4 +17,11 @@ desc "Build and install #{name}-#{version} gem into system gems"
 task('install') { gem_helper.install_gem }
 
 desc "Create tag #{version_tag} build and push #{name}-#{version} gem to Rubygems"
-task('release') { gem_helper.release_gem }
+task('release') do
+  gem_helper.instance_eval do
+    guard_clean
+    built_gem_path = build_gem
+    tag_version unless already_tagged?
+    rubygem_push(built_gem_path) if gem_push?
+  end
+end