latexmk with pvc option

This is a very crude and simple way of having the latex errors displayed in the standard typesetting window (with html markup), with typesetting done continuously, similarly to as in Watch Document.

The idea is to run the typesetting command (Cmd+R) with latexmk in pvc mode (preview continuously).
For this to work I modified a few lines in texmate.py and texparser.py
(this is submitted in my forked tmbundle: https://github.com/szymtor/latex.tmbundle).

To use this :
In Bundles→Latex→Preferences set:
Default engine: pdflatex, 
Use Latexmk: Yes
Show pdf automatically: Yes

I am open to improvements, suggestions and modifications.