Merge pull request #245 from spark-solutions/3-0-stable

Bump version to 3.0.0

Author: damianlegawiec

spree_gateway.gemspec

@@ -2,7 +2,7 @@
 Gem::Specification.new do |s|
   s.platform    = Gem::Platform::RUBY
   s.name        = 'spree_gateway'
-  s.version     = '3.0.0.beta'
+  s.version     = '3.0.0'
   s.summary     = 'Additional Payment Gateways for Spree Commerce'
   s.description = s.summary