Bump version to 0.4.0

Example/Podfile.lock

@@ -14,7 +14,7 @@ PODS:
   - AFNetworking/Serialization (3.1.0)
   - AFNetworking/UIKit (3.1.0):
     - AFNetworking/NSURLSession
-  - GMBase (0.3.8):
+  - GMBase (0.3.9):
     - GMHud
     - GMKit
     - GMNetService
@@ -88,7 +88,7 @@ EXTERNAL SOURCES:
 
 SPEC CHECKSUMS:
   AFNetworking: 5e0e199f73d8626b11e79750991f5d173d1f8b67
-  GMBase: 441dfa1f2edc1ef748e6feb3674b7244cbc71e2d
+  GMBase: 4375fba9270ea77dc8e54d847cc3a5b96f12932e
   GMCache: b7d48432ee2469eb0c6c86c720a1958bd373187e
   GMHud: 74387462a8b9f099c760a1ddbf493cc86da7cdbc
   GMKit: 39ca9fdf84f75f4baad186585faef4dbef82f73b

GMBase.podspec

 Pod::Spec.new do |s|
     s.name             = 'GMBase'
-    s.version          = '0.3.9'
+    s.version          = '0.4.0'
     s.summary          = '更美iOS APP 的 Objective-C 基础Pod库'
     s.homepage         = 'http://git.wanmeizhensuo.com/gengmeiios/GMBase'
     s.license          = '仅限北京更美互动信息科技有限公司内部使用'