Bump version, regen APIs

Delete services which are no longer discoverable:
 - adexchangebuyer:v1_3
 - appengine:v1beta4
 - appengine:v1beta5
 - autoscaler:v1beta2
 - classroom:v1beta1
 - cloudkms:v1beta1
 - cloudlatencytest:v2
 - container:v1beta1
 - coordinate:v1
 - datastore:v1beta2
 - datastore:v1beta3
 - deploymentmanager:v2beta2
 - dfareporting:v2_1
 - dfareporting:v2_3
 - dfareporting:v2_5
 - dfareporting:v2_6
 - gan:v1beta1
 - genomics:v1beta2
 - logging:v1beta3
 - manager:v1beta2
 - pubsub:v1beta2
 - tracing:v1

Also include fixes in the gemspec file recommended by the package
script.

lib/google/apis/generator/annotator.rb

@@ -233,9 +233,9 @@ module Google
         def annotate_resource(name, resource, parent_resource = nil)
           @strip_prefixes << name
           resource.parent = parent_resource unless parent_resource.nil?
-          resource.api_methods.each do |_k, v|
+          resource.methods_prop.each do |_k, v|
             annotate_method(v, resource)
-          end unless resource.api_methods.nil?
+          end unless resource.methods_prop.nil?
 
           resource.resources.each do |k, v|
             annotate_resource(k, v, resource)

lib/google/apis/generator/model.rb

@@ -94,7 +94,7 @@ module Google
 
         def all_methods
           m = []
-          m << api_methods.values unless api_methods.nil?
+          m << methods_prop.values unless methods_prop.nil?
           m << resources.map { |_k, r| r.all_methods } unless resources.nil?
           m.flatten
         end
@@ -127,7 +127,7 @@ module Google
 
         def all_methods
           m = []
-          m << api_methods.values unless api_methods.nil?
+          m << methods_prop.values unless methods_prop.nil?
           m << resources.map { |_k, r| r.all_methods } unless resources.nil?
           m.flatten
         end

lib/google/apis/version.rb

@@ -15,7 +15,7 @@
 module Google
   module Apis
     # Client library version
-    VERSION = '0.11.3'
+    VERSION = '0.12.0'
 
     # Current operating system
     # @private