fix warnings in gemspec

asynk.gemspec

@@ -4,22 +4,23 @@ require File.expand_path('../lib/asynk/version', __FILE__)
 Gem::Specification.new do |gem|
   gem.authors       = ["Danil Nurgaliev"]
   gem.email         = ["[email protected]"]
-  gem.summary       = "Async/sync inter sevrer communication based on RabbitMQ"
-  gem.description   = "Async/sync inter sevrer communication based on RabbitMQ"
+  gem.summary       = "Async/sync inter sevrer communication tool."
+  gem.description   = "Async/sync inter sevrer communication tool, based on RabbitMQ and Celluloid"
   gem.license       = "LGPL-3.0"
+  gem.homepage       = "https://github.com/konalegi/asynk"
 
   gem.files         = `git ls-files -z`.split("\x0")
   gem.executables   = gem.files.grep(%r{^bin/}) { |f| File.basename(f) }
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.name          = "asynk"
   gem.require_paths = ["lib"]
   gem.version       = Asynk::VERSION
-  gem.add_dependency                  'celluloid', '~> 0.17.0'
-  gem.add_dependency                  'celluloid-io'
-  gem.add_dependency                  'connection_pool'
-  gem.add_dependency                  'activesupport'
+  gem.add_dependency                  'celluloid', '~> 0.17'
+  gem.add_dependency                  'celluloid-io', '~> 0.17'
+  gem.add_dependency                  'connection_pool', '~> 2.2'
+  gem.add_dependency                  'activesupport', '~> 4.2'
   gem.add_dependency                  'json', '~> 1.0'
-  gem.add_dependency                  'bunny'
+  gem.add_dependency                  'bunny', '~> 2.3'
   gem.add_development_dependency      'minitest', '~> 5.7', '>= 5.7.0'
   gem.add_development_dependency      'rake', '~> 10.0'
   gem.add_development_dependency      'rails', '~> 4'