增加多媒体阅卷功能

1.替换rich-text模块的css和独立的渲染js方法，挪到static下独立的rich-text文件夹
2.修改mark-json下的json-builder改为json-loader，只承担json文件的抓取功能；新增json-view作为single-image-view的替代，实际执行json内容的渲染工作

stmms-web/src/main/webapp/static/mark-json/js/json-builder.js

@@ -1,77 +0,0 @@
-//多媒体显示模块
-var json_builder = function(option, success) {
-    var object = new JsonBuilder(option);
-    success();
-    return object;
-}
-
-function JsonBuilder(option) {
-    this.markControl = option.markControl;
-    this.answerServer = option.answerServer;
-    this.init();
-    this.markControl.on('step.board.show', this, function(event, context, eventObject) {
-        this.container.removeClass('span12');
-        this.container.addClass('span10');
-    });
-    this.markControl.on('step.board.hide', this, function(event, context, eventObject) {
-        this.container.removeClass('span10');
-        this.container.addClass('span12');
-    });
-    this.markControl.on('task.get.before', this, function(event, context, eventObject) {
-        this.task = undefined;
-        this.json = undefined;
-    });
-    this.markControl.on('task.get.success', this, function(event, context, eventObject) {
-        this.task = context.task;
-        this.json = undefined;
-    });
-    this.markControl.on('task.get.none', this, function(event, context, eventObject) {
-        this.task = undefined;
-        this.json = undefined;
-    });
-    this.markControl.on('image.position.change', this, function(event, context, topPercent) {
-        if (this.task != undefined) {
-            this.updateScrollTop(topPercent);
-        }
-    });
-}
-
-JsonBuilder.prototype.init = function() {
-    var self = this;
-    this.container = this.markControl.container.imageContent;
-    this.container.height(this.markControl.container.centerContent.height());
-    this.container.css('overflow', 'scroll');
-    
-    this.container = getDom(this.control_dom, this.markControl).appendTo(this.markControl.container);
-    this.container.hide();
-
-}
-
-JsonBuilder.prototype.build = function(task,callback) {
-    var self = this;
-    if (this.task != undefined && this.task.answerUrl != undefined) {
-    	var url = this.answerServer + this.task.answerUrl;
-    	$.get(url, function(result) {
-    		
-    		self.container.show();
-        	self.markControl.trigger('task.load.finish');
-        }).error(function() {
-        	 callback('image load error');
-        });
-    }
-}
-
-JsonBuilder.prototype.updateScrollTop = function(scrollTopPercent) {
-    var height = this.canvas.height;
-    var minHeight = this.container.height();
-    if (scrollTopPercent != undefined && scrollTopPercent >= 0 && scrollTopPercent <= 1 && height > minHeight) {
-        var left = height * (1 - scrollTopPercent);
-        var scrollTop = left > minHeight ? (height - left) : (height - minHeight);
-        this.container.scrollTop(scrollTop);
-    } else {
-        this.container.scrollTop(0);
-    }
-}
-
-JsonBuilder.prototype.control_dom = '<div class="wp"><div class="rich-text"></div></div>';
-JsonBuilder.prototype.rich_text_dom = '<div class="rich-text"></div>';