更新前端静态网页获取方式，放弃使用后端获取api

frontend/node_modules/detect-port-alt/HISTORY.md

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+
+1.1.2 / 2017-05-11
+==================
+
+  * fix: should double check 0.0.0.0 and localhost (#20)
+  * docs: ignore type of port when checking if it's occupied (#18)
+
+# 1.1.1 / 2017-03-17
+
+  * fix: try to use next available port (#16)
+
+# 1.1.0 / 2016-01-17
+
+  * Use server listen to detect port
+
+# 1.0.7 / 2016-12-11
+
+  * Early return for rejected promise
+  * Prevent promsie swallow in callback
+
+# 1.0.6 / 2016-11-29
+
+  * Bump version for new Repo
+
+# 0.1.4 / 2015-08-24
+
+  * Support promise
+
+# 0.1.2 / 2014-05-31
+
+  * Fix commander
+
+# 0.1.1 / 2014-05-30
+
+  * Add command line support
+
+# 0.1.0  / 2014-05-29
+
+  * Initial release