VNLA-1220 fix/IPBFormatter Warnings by remove reference from function signatures

[OlivierLamyCanuel]

Issue

Two functions from the IPBFormatter plugin were triggering this error:

Parameter 2 to IPBFormatterPlugin::editorPlugin_getJSDefinitions_handler() expected to be a reference, value given.

Both functions were expecting the $args argument to be a reference.

See: https://higherlogic.atlassian.net/browse/VNLA-1220

Solution

• Use the value rather than the reference in the function signature.

QA

• Set debug mode on
• Enable the Advanced Editor plugin and IPBFormatter plugin.
• Notice the error message showing up about those two functions.
• Check out this branch, notice the message is gone.

Addidionnal QA

• Set the posting type to IPB.
• Post content in the IPB format.
• Notice that the post is rendered properly.

[CLAassistant]

All committers have signed the CLA.