Merge branch 'feature/donation-api'
updated changelog
synced support for custom campaign fields from production
updated docs with Custom checkout for donations info
wrong branch
updated docs
fixed readme
added forced contact override
Merge branch 'master' of https://github.com/Minds-On-Design-Lab/givingimpact-php

# By keston (7) and Mike Joseph (1)
# Via keston
* 'master' of https://github.com/Minds-On-Design-Lab/givingimpact-php:
  updated readme
  updated readme
  updated readme
  updated readme
  contact must be non-empty
  moved readme changes to the right branch
  wrong branch
  updated docs with Custom checkout for donations info

Conflicts:
	MODL/GivingImpact/Model/Donation.php
force ssl connection to the api
put contact fix back
fixed header font keyname
custom field id in PHP api
remove donation_level from donation model
updated docs
fixed typo in readme
supporter... support
updated docs
Add ability too edit supporter
fixed merge conflict