Update tests for node v4+

coffee/imgReplacer.coffee

@@ -62,6 +62,7 @@ module.exports= class ImgReplacer
 						@qr[u]= new DocxQrCode(png,@xmlTemplater,imgName,num,@getDataFromString)
 						@qr[u].decode(@imageSetter)
 					catch e
+						console.error e
 						@imageSetter(mockedQrCode)
 				dat= png.decode(finished)
 		else

coffee/test.coffee

@@ -245,7 +245,7 @@ describe 'qrcode replacing',->
 				images=zip.file(/media\/.*.png/)
 				expect(images.length).to.equal(3)
 				expect(images[0].asText().length).to.equal(826)
-				expect(images[1].asText().length).to.equal(12888)
+				expect(images[1].asText().length).to.be.within(12888, 12900)
 				expect(images[2].asText().length).to.be.within(17417,17440)
 				done()
 
@@ -272,7 +272,7 @@ describe 'qrcode replacing',->
 				images=zip.file(/media\/.*.png/)
 				expect(images.length).to.equal(3)
 				expect(images[0].asText().length).to.equal(826)
-				expect(images[1].asText().length).to.equal(12888)
+				expect(images[1].asText().length).to.be.within(12888, 12900)
 				expect(images[2].asText().length).to.be.within(17417,17440)
 				done()