added goal_progress as an argument to the theme function for goals widgets so it only gets calculated once per widget instead of once per token
removed an extra node_load
see if fewer total donation queries scales better
consolidated multiple donation amount queries.  Didn't provide as much of a boost as I'd hoped
modified the total donations query to use the fundraiser_donations table
added comments
Merge pull request #346 from JacksonRiver/7.x-4.x-webform_goals_performance

Webform goals performance improvements