Beautify lists in from_html plugin / correct increasing of y value after image

1. I've finetuned the layout of ul/ol in the from_html plugin

* Change position and size of dots
* No distinction between ul/ol regarding indention
* Set indention considering scaleFactor

2. Correct increasing y value after image. Top and bottom space must be considered.

Sorry for mixing two things together. My mistake!

Sorry for committing dist files. It would be better if these files and bower.json were ignored.