updated doc to build the browser version
added error throwing for loadFromFile when file was not loaded
added failing test when image is in footer and document.xml
created ImgReplacer@getImageName which returns the next available
imagePath

 * Created hasImage metho in Imgmanager
 * created imgmanager@getFullPath and using it
using the same mockedqrcode for all errors, and using num instead of @xmlTemplater.DocxGen.qrCodeNumCallBack
regression test: use qrcode in footer and document (solves #103)
added some error cases
Merge remote-tracking branch 'origin/master' into 1.x

Conflicts:
	coffee/docUtils.coffee
	coffee/docxQrCode.coffee
	coffee/docxgen.coffee
	coffee/docxgenTest.coffee
	coffee/imgManager.coffee
	coffee/imgReplacer.coffee
Merge remote-tracking branch 'origin/1.x' into 1.x