Remove all unnecessary references to DocUtils.env

docxtemplater shouldn't have any references to browser or node specific
functionality, so that it can be used from both without some magic
tricks

coffee/docxQrCode.coffee

 DocXTemplater=require('docxtemplater')
-DocUtils=DocXTemplater.DocUtils
 
 vm=require('vm')
 JSZip=require('jszip')
@@ -11,8 +10,6 @@ module.exports= class DocxQrCode
 		@callbacked=false
 		@data=imageData
 		if @data==undefined then throw new Error("data of qrcode can't be undefined")
-		if DocUtils.env=='browser'
-			@base64Data=JSZip.base64.encode(@data)
 		@ready=false
 		@result=null
 	decode:(@callback) ->
@@ -27,9 +24,6 @@ module.exports= class DocxQrCode
 			testdoc.render()
 			_this.result=testdoc.content
 			_this.searchImage()
-		if DocUtils.env=='browser'
-			@qr.decode("data:image/png;base64,#{@base64Data}")
-		else
 		@qr.decode(@data,@data.decoded)
 	searchImage:() ->
 		cb=(err,@data=@data.data)=>

coffee/imgReplacer.coffee

@@ -52,10 +52,6 @@ module.exports= class ImgReplacer
 		if imageTag==undefined then throw new Error('imageTag undefined')
 		replacement= DocUtils.xml2Str imageTag
 		@xmlTemplater.content= @xmlTemplater.content.replace(match[0], replacement)
-		if DocUtils.env=='browser'
-			@qr[u]= new DocxQrCode(oldFile.asBinary(),@xmlTemplater,imgName,num,@getDataFromString)
-			@qr[u].decode(@imageSetter)
-		else
 		mockedQrCode={xmlTemplater:@xmlTemplater,imgName:imgName,data:oldFile.asBinary(),num:num}
 		if /\.png$/.test(oldFile.name)
 			do (imgName) =>