Stick with the Ann prefix
Put the csv annotations in the image.

* src/html5ann/ann_canvas.js (AnnCanvas): Put an initial image on the svg
when we begin.
(csvOnCanvas): New method to add polygons to svg canvas.
(imgOnSVG): New method to add an image to svg canvas. We don't create a new
svg container every time. We just change the href attribute.
(clsSVG): New method to clean the svg canvas DOM element. Its tricky because
we need to clean all but the first three elements. First two element are
created automatically by Raphael (soon to be removed) and the last is the
image.
* src/html5ann/ann_filelist.js: Use newly created methods in ann_canvas.js.
* src/html5ann/ann.html: Source the new file ann_csv.js
* src/html5ann/ann_csv.js: New file in charge of parsing the CSV files.
Put a FIXME so I remember the problem
Polygons are red lines of width 1
When clearing, put initial image in svg canvas
Make sure we remove the selected when clearing the list
Don't go a clnSVG before adding another image
Separate the polygon and image removal methods
When changing images, remove polygons from previous image
Change the way we do pan zoom.

Based on code from http://phrogz.net/tmp/canvas_zoom_to_cursor.html. The pan
zoom is working but we need to make the upload image work.
*ann.html: Added a new canvas tag.
*ann.js: We now need to call redraw.
*ann_canvas.js: Replaced previous logic with new pan zoom.
Display images when selected.

Also handle the default undefined.jpg image.
* ann.js: redraw() -> remImg()
* ann_canvas.js: Refactor remImg and imageOnSVG methods.
Show the polygons in the images.

* ann_csv.js: Create an array with the polygon integers.
* ann_canvas.js: Keep track of what annotation is on the canvas and use the
poygon integers to draw the polygons.
Fix typo. widht->width
Refactor imgOnSVG method.

It will be removed eventually becuase we are no longer handling SVG.
Paint all the annotations only if this.currAnns is present
Remove argument from redraw function.

We should think of this function as redrawing what is already in this.src.img
and this.currAnns.
Remove remPoly
Remove imgOnSVG
Use Image.onload to avoid race condition
Remove raphael submodule