rename endpoints for versions by project and vv

lib/api/v3/projects/projects_api.rb

@@ -51,7 +51,7 @@ module API
             mount API::V3::Projects::AvailableAssigneesAPI
             mount API::V3::Projects::AvailableResponsiblesAPI
             mount API::V3::Categories::CategoriesByProjectAPI
-            mount API::V3::Versions::ProjectsVersionsAPI
+            mount API::V3::Versions::VersionsByProjectAPI
             mount API::V3::Types::TypesByProjectAPI
           end
         end

lib/api/v3/versions/projects_by_version_api.rb

@@ -30,7 +30,7 @@
 module API
   module V3
     module Versions
-      class VersionsProjectsAPI < Grape::API
+      class ProjectsByVersionAPI < Grape::API
         resources :projects do
           before do
             @projects = @version.projects.visible(current_user).all

lib/api/v3/versions/versions_api.rb

@@ -59,7 +59,7 @@ module API
               VersionRepresenter.new(@version, context)
             end
 
-            mount API::V3::Versions::VersionsProjectsAPI
+            mount API::V3::Versions::ProjectsByVersionAPI
           end
         end
       end

lib/api/v3/versions/versions_by_project_api.rb

@@ -30,7 +30,7 @@
 module API
   module V3
     module Versions
-      class ProjectsVersionsAPI < Grape::API
+      class VersionsByProjectAPI < Grape::API
         resources :versions do
           before do
             @versions = @project.shared_versions.all