修改了Web后台的部分界面，增加了HAmqtt中的总电量传感器，后台新增mqtt上报频率设置

mico-os/platform/GCC/math_newlib.c

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+/**
+ *  UNPUBLISHED PROPRIETARY SOURCE CODE
+ *  Copyright (c) 2016 MXCHIP Inc.
+ *
+ *  The contents of this file may not be disclosed to third parties, copied or
+ *  duplicated in any form, in whole or in part, without the prior written
+ *  permission of MXCHIP Corporation.
+ *
+ */
+
+
+/**
+ *  Sine function
+ *
+ *  Simple Taylor series approximation of sine function
+ *  Since Newlib doesn't contain one
+ *  see http://www.wolframalpha.com/input/?i=taylor+series+sin+x
+ *
+ * @param x : the value for which Sine will be computed
+ *
+ * @return  the Sine of x
+ */
+#define PI (3.1415926)
+
+double sin( double x )
+{
+    int term = 1;
+    double val = 0;
+
+    x -= ( (int) ( x / ( 2 * PI ) ) ) * 2 * PI;
+
+    if ( x > PI )
+    {
+        x -= 2 * PI;
+    }
+    if ( x < -PI )
+    {
+        x += 2 * PI;
+    }
+
+    for ( term = 0; term < 6; term++ )
+    {
+        double multval = x;
+        double denval = 1;
+        int ex;
+        for ( ex = 0; ex < ( term * 2 ); ex++ )
+        {
+            multval *= x;
+            denval *= ( ex + 2 );
+        }
+        val += ( ( term % 2 == 1 ) ? -1 : 1 ) * multval / denval;
+    }
+    return val;
+}
+
+/* Simple Taylor series approximation of natural logarithm function
+ * see http://www.efunda.com/math/taylor_series/logarithmic.cfm
+ */
+
+double log( double x )
+{
+    int term = 1;
+    double val = 0;
+
+    for ( term = 1; term < 5; term++ )
+    {
+        double multval = ( x - 1.0 ) / ( x + 1.0 );
+        int ex;
+        for ( ex = 0; ex < ( term * 2 - 2 ); ex++ )
+        {
+            multval *= multval;
+        }
+        val += multval / ( term * 2 - 1 );
+    }
+    return 2 * val;
+}