Update c3.js and c3.min.js

c3.js

@@ -309,7 +309,7 @@
         if(isNode()){
             if(!nodeCss){
                 var style = require('fs').readFileSync(__filename.replace('c3.js', 'c3.css'), 'utf-8');
-                nodeCss = [require('css').parse(style), require('css').parse($$.ed3Config.style)];
+                nodeCss = [require('css').parse($$.ed3Config.style), require('css').parse(style)];
             }
 
             var obj, rule, sel, decl;
@@ -321,6 +321,7 @@
                     if(!rule.selectors) continue;
                     for(var k = 0; k<rule.selectors.length; k++){
                         sel = rule.selectors[k];
+                        if(sel !== selector) continue;
                         for(var l = 0; l<rule.declarations.length; l++){
                             decl = rule.declarations[l];
                             if(decl.property === property){
@@ -356,6 +357,8 @@
         }
     }
 
+    c3.getStyleValue = getStyleValue;
+
 
     c3_chart_internal_fn.init = function () {
         var $$ = this, config = $$.config;