Bubble and Combo Charts

Hi Wes,

I have created 2 charts : 
- One is the Bubble Chart that will display all the open opportunities by owner using the probability and a custom field (stage duration) that will display the number of days singe the stage hasn't changed. The bigger the bubble is , the bigger the stage duration is. I had try to avoid using a custom field, but I coudn't.
- The second one is a combo Chart that is using the account object and displays the amount of closed won opportunities against the total amount of opportunities of each account (excluding the closed lost ones).

I have added the account object and opportunity object to git.

Please let me know if there is anything that you'll like me to change.

Cristina