Testing fix for zuora gem
Forcing dependent gems to be a specific version
Merge remote-tracking branch 'sendgrid/master'

Conflicts:
	zuora.gemspec
Updating sandbox wsdl
Fixing gemfile
excluding write only field
Rolling back updated wsdl
Merge pull request #3 from timsegraves/ch-update-wsdl-1228

[GK] Exclude Update-Only Field From Select