Teo round2

Hi,

I've worked on fixing the issues you pointed out in the previous round. I worked on the basic character set and numbers, but I didn't edit punctuation apart from the comma and I didn't start fixing the currency symbols yet. Those still need to be tweaked to harmonize better with SSP. 

I'll also need to go through once more that all the glyphs are exactly 600 units wide. Many of the characters that are marked as red are still one unit off but I wasn't sure if you want me to touch them.

I wanted to double check if you want me to work on the glyphs: integral, radical, delta.math, omega.math, litre, estimated and product. These are all marked red, but are slanted and I think they could do with a little tweaking.