Render function as mentioned in issue #146, only works in browser context

Updated build scripts
New way for bundling content in dist, tobe tested, currently to be considered beta

gulp/tasks/less.js

@@ -0,0 +1,35 @@
+var gulp = require('gulp');
+var path = require('path');
+var less = require('gulp-less');
+var rename = require('gulp-rename');
+var concat = require('gulp-concat');
+
+gulp.task('editor-less', function () {
+    gulp.src(['./editor/css/editor.less'])
+        .pipe(less({
+            generateSourceMap: false, // default true
+            paths: [ path.join(__dirname, 'less', 'includes') ]
+        }))
+        .pipe(concat('editor.css'))
+        .pipe(gulp.dest('./editor/css/'));
+});
+
+gulp.task('mermaid-less', function () {
+    gulp.src(['./src/less/*/mermaid.less'])
+        .pipe(less({
+            generateSourceMap: false, // default true
+            paths: [ path.join(__dirname, 'less', 'includes') ]
+        }))
+        .pipe(rename(function (path) {
+            if(path.dirname === 'default'){
+                path.basename = 'mermaid';
+            }else{
+                path.basename = 'mermaid.' + path.dirname;
+            }
+            path.dirname = '';
+        }))
+        .pipe(gulp.dest('./dist/'));
+});
+
+
+gulp.task('less',['mermaid-less', 'editor-less']);