Fix OAuth2 when custom arg_separator.output is defined

OAuth2 auth fails when a custom arg_separator.output is defined. Change http_build_query calls to force '&' arg separator.
Update version number in Readme file
Merge pull request #79 from WoogieNoogie/development-ctct

Update version number in Readme file
Triggering welcome & update profile emails

Triggering welcome and update profile emails (setting the action_by parameter to true)
Merge pull request #74 from jcoby/patch-1

Fix OAuth2 when custom arg_separator.output is defined
Merge remote-tracking branch 'ctct/development' into development

Conflicts:
	README.md