Fix singup localization (#113)

* update singup localization

* restore the content

* update some problems

Author: yJunS

core/src/main/resources/hudson/security/HudsonPrivateSecurityRealm/signup_zh_CN.properties

@@ -34,7 +34,7 @@ Password=\u5BC6\u7801
 Show=\u663E\u793A
 Strength=\u5F3A\u5EA6
 Create\ account=\u521B\u5EFA\u8D26\u53F7
-A\ strong\ password\ is\ a\ long\ password\ that's\ unique\ for\ every\ site.\ Try\ using\ a\ phrase\ with\ 5-6\ words\ for\ the\ best\ security.=\u9AD8\u5F3A\u5EA6\u7684\u5BC6\u7801\u5E94\u8BE5\u662F\u6BD4\u8F83\u957F\uFF0C\u800C\u4E14\u6BCF\u4E2A\u7F51\u7AD9\u90FD\u662F\u552F\u4E00\u7684\u3002\u8BF7\u53C2\u8BD5\u4F7F\u75285\uFF5E6\u4E2A\u5B57\u7B26\u7684\u5B89\u5168\u5BC6\u7801\u3002
+A\ strong\ password\ is\ a\ long\ password\ that's\ unique\ for\ every\ site.\ Try\ using\ a\ phrase\ with\ 5-6\ words\ for\ the\ best\ security.=\u5BF9\u4E8E\u6BCF\u4E2A\u7F51\u7AD9\u6765\u8BB2\uFF0C\u9AD8\u5F3A\u5EA6\u7684\u5BC6\u7801\u4E00\u822C\u90FD\u662F\u957F\u5BC6\u7801\u4E14\u552F\u4E00\u7684\u3002\u8BF7\u4F7F\u7528\u4E0D\u5C11\u4E8E5\uFF5E6\u4F4D\u7684\u5B89\u5168\u5BC6\u7801\u3002
 Strong=\u5F3A
 Moderate=\u9002\u4E2D
 Weak=\u5F31