fix

新聞與公告QA-權限設定--優先處理3.一般發佈新聞&公告人，應該只能看到自己發佈的新聞&公告，但是目前可以看到全部，而且可以刪除其他人的公告.至少要不能刪除別人的公告
新聞與公告QA-編輯問題-發佈新聞時，發佈單位預設為請選擇
新聞與公告QA-編輯問題-公告模組請移除 Subtitle 欄位
put rb-readline only in Linux
make app_manager destroy after user deletion.   may need to run:
 AppManager.all.collect{|am|  am if am.user.nil? }.delete_if {|x| x == nil}.each{|am| am.destroy}
for clean up DB.

app/models/app_manager.rb

@@ -1,7 +1,7 @@
 class AppManager 
   include Mongoid::Document
   include Mongoid::Timestamps
-  	
+  
   belongs_to :user
   
   belongs_to :managing_app, :polymorphic => true  #,:class_name => 'ModuleApp',:inverse_of => :managers,:foreign_key => "user_id" 

app/models/module_app.rb

@@ -4,7 +4,7 @@ class ModuleApp
   include OrbitCoreLib::ObjectTokenUnility
 
   field :key
-	field :title
+  field :title
   field :version
   field :organization
   field :author
@@ -16,8 +16,8 @@ class ModuleApp
   field :app_pages ,type: Array
   field :widgets ,type: Array
     
-  has_many :managers,as: :managing_app ,:class_name => "AppManager" #,:dependent => :destroy,:foreign_key => "managing_app_id",:inverse_of => :managing_app
-  has_many :sub_managers,as: :sub_managing_app ,:class_name => "AppManager"#, :dependent => :destroy,:foreign_key => "sub_managing_app_id",:inverse_of => :sub_managing_app
+  has_many :managers,as: :managing_app ,:class_name => "AppManager" ,:dependent => :destroy#,:foreign_key => "managing_app_id",:inverse_of => :managing_app
+  has_many :sub_managers,as: :sub_managing_app ,:class_name => "AppManager", :dependent => :destroy#,:foreign_key => "sub_managing_app_id",:inverse_of => :sub_managing_app
   
   has_many :tags
   has_many :page_parts

app/models/user/user.rb

@@ -17,10 +17,10 @@ class User
 
   has_many :attribute_values, :autosave => true, :dependent => :destroy
   has_many :app_auths,as: :privilege_apps,:inverse_of => :privilege_lists
-  has_many :blocked_apps,  :inverse_of => :blocked_users, :class_name => "AppAuth"
-  has_many :privilege_apps,  :inverse_of => :privilege_users, :class_name => "AppAuth"
+  has_many :blocked_apps,  :inverse_of => :blocked_users, :class_name => "AppAuth", :dependent => :destroy
+  has_many :privilege_apps,  :inverse_of => :privilege_users, :class_name => "AppAuth", :dependent => :destroy
   
-  has_many :managing_apps,:class_name => "AppManager"
+  has_many :managing_apps,:class_name => "AppManager", :dependent => :destroy
   
   belongs_to :role
   has_and_belongs_to_many :sub_roles