Making the JSON example complete as though you were reading the raw headers themselves in the email's source

Adding an explicit example, and also telling developers the headers will be STRIPPED FROM THE FINAL EMAIL and to not expect the headers to be visible in the email's source upon receipt.
Updated all the urls to https, and changed blog.sendgrid to sendgrid.com/blog/
fixed a bad URL I pushed
Link to Email API and reorder SMTP
Create Openshift.md

adding page to 'tutorials' section on how to use SendGrid with OpenShift
fix text_html on legacy template
Task 706 :: Docs-a-thon

"Original File: https://sendgrid.com/docs/User_Guide/smtp_ports.html
should move to this directory

 Merge in any extra information we're missing, but that is found on
this KB article -
https://sendgrid.zendesk.com/hc/en-us/articles/200328026"
Merge pull request #664 from ryanlittleton/patch-9

Create Openshift.md
Merge pull request #658 from mikepace/patch-3

Link to Email API and reorder SMTP
Merge pull request #657 from mbernier/httpsUrls

Https urls
Task 706

docsathon
issue 334

Added section linking to KB article detailing correct subuser creation process.
Merge pull request #666 from jacobmovingfwd/doc187

fix text_html on legacy template
Task 668 Docsathon

Replace ://sendgrid.com/api/ with ://api.sendgrid.com/api/
Task 706b

Creating Directory and moving SMTP Ports
Update event_depecrated.md

Task #482 done by Ashley Rohweder
Merge branch 'develop' of https://github.com/anishaingram/docs-1 into anishaingram-develop

Conflicts:
	source/User_Guide/smtp_ports.html
Merge branch 'anishaingram-develop' into develop
Merge pull request #669 from ashroh/patch-1

Update event_depecrated.md
Items 204, 207, 213 & 215