Unable to store a simple string (or number)

Problem/Motivation

If you store a string using the "plain text" format, it is actually embedded in a <p> tag, and followed by a new line (0D 0A characters).
Using [plain:config_token:my_token] to retrieve it removes the <p> tag but leaves the new line.

This creates issues when trying to compare the token value with predetermined values.

Steps to reproduce

Create a new config token of "Plain text" format.
Get the token value (using ECA for instance).

Proposed resolution

Have a "raw text" or "single value" format that does not add anything to the entered string.

Remaining tasks

User interface changes

API changes

Data model changes