Cleanup dependencies

Gemfile

@@ -1,6 +1,7 @@
-source "https://rubygems.org"
+source 'https://rubygems.org'
 
-git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
-
-# Specify your gem's dependencies in girocode.gemspec
 gemspec
+
+gem 'rake'
+gem 'minitest'
+gem 'simplecov'

Gemfile.lock

@@ -0,0 +1,37 @@
+PATH
+  remote: .
+  specs:
+    girocode (0.1.1)
+      bank-contact
+      rqrcode
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    bank-contact (0.0.6)
+    chunky_png (1.4.0)
+    docile (1.4.0)
+    minitest (5.14.4)
+    rake (10.5.0)
+    rqrcode (2.1.0)
+      chunky_png (~> 1.0)
+      rqrcode_core (~> 1.0)
+    rqrcode_core (1.2.0)
+    simplecov (0.21.2)
+      docile (~> 1.1)
+      simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-html (0.12.3)
+    simplecov_json_formatter (0.1.3)
+
+PLATFORMS
+  x86_64-darwin-18
+
+DEPENDENCIES
+  girocode!
+  minitest
+  rake
+  simplecov
+
+BUNDLED WITH
+   2.2.22

girocode.gemspec

@@ -18,9 +18,4 @@ Gem::Specification.new do |s|
 
   s.add_dependency 'rqrcode'
   s.add_dependency 'bank-contact'
-
-  s.add_development_dependency 'bundler'
-  s.add_development_dependency 'rake', '~> 10.0'
-  s.add_development_dependency 'minitest', '~> 5.0'
-  s.add_development_dependency 'simplecov'
 end