Make the Zuora invoice prettier

[rndstr]

From @rndstr on September 5, 2017 13:55

There is a Word template with mailmerge, lots of information can be found in the comments of #143

Basically

Step 1:

• remove columns that the customer doesn't care about (e.g., Usage Description)

Step 2:

• proper $ and number formatting everywhere
  • quantity should have no decimal places
  • no space between $ and the number`
• make the table cell vertical alignments consistent
• other alignment issues
• do something about the breaking numbers?
• typography improvements? font-sizes
• reduce colors to save cartridges?

Step 3:

• do a design from scratch

Copied from original issue: weaveworks/billing#181

[rade]

Looks fine to me.