Fix and implement supplier counters

lib/qwaiter/couchbase.rb

@@ -0,0 +1,17 @@
+module Qwaiter
+  module Couchbase
+    def self.connection
+      $cb
+    end
+
+    def self.load_design_docs!
+      Dir.glob(Rails.root.join('config/couchbase/design_docs', "*.json")).each do |design_doc|
+        connection.save_design_doc File.open(design_doc)
+      end
+    end
+
+    def self.design_doc(name)
+      connection.design_docs[name]
+    end
+  end
+end

lib/qwaiter/counter.rb

@@ -8,15 +8,16 @@ module Qwaiter
     end
 
     def self.get(key)
-      connection.get(key).to_i
+      connection.get(key, quiet: true).to_i
     end
 
-    def self.incr(*args)
-      connection.incr(*args)
+    def self.incr(key, options = {})
+      options[:initial] ||= 0
+      connection.incr(key, options)
     end
 
-    def self.decr(*args)
-      connection.decr(*args)
+    def self.decr(key, options = {})
+      connection.decr(key, options)
     end
   end
 end