Adds d3 javascript library.
Adds member count report.
Add edit link to account tab on contact page, close #153.
Adds permission checks for amazon payment button.
Add check for authenticated permissions to user_access(), close #161.
Adds default for crm_url() options.
Fixes php warnings in base system.
Fix php warnings in contact.
Fix php warnings in member.
Fix php warnings in user.
Fix php warnings in key.
Fix php warnings in payment.
Fix php warnings in amazon_payment.
Fix php warnings in paypal_payment.
Merge pull request #159 from chris18890/dev

cleaning up mentor module a bit #143
Fix member_data_alter() to add member to contact.
Add email notifications to amazon payment.