Fix #52 - Add API versioning (v1)

app/controllers/api/v1/follows_controller.rb

@@ -0,0 +1,13 @@
+class Api::V1::FollowsController < ApiController
+  before_action :doorkeeper_authorize!
+  respond_to    :json
+
+  def create
+    if params[:uri].blank?
+      raise ActiveRecord::RecordNotFound
+    end
+
+    @account = FollowService.new.(current_user.account, params[:uri]).try(:target_account)
+    render action: :show
+  end
+end