Fixing CSRF issues (apache#2569)

* 0.17.4

* Fixing CSRF issues

Since turning CSRF across the site with Flask-WTF, a few POST request
have been failing. This PR addresses these issues.

v0.17.2

v0.17.1

SQLLab release.

v0.17.0

[v0.16.1] bump version for prod release (apache#2250)

v0.16.0