[LanguageManager] Dust.js conflict

[redmunds]

I'm seeing this on Win7 in console log when starting Brackets:

CodeMirror mode "application/x-ejs" is already used by language EJS, won't register for Dust.js
LanguageManager.js:168

@ingorichter This is a new language for Sprint 32 (pull #5370), so do you think this is OK or needs to be addressed?

[ingorichter]

This has low impact and should not hold off the release. It's unfortunate that I haven't seen this myself.

[njx]

Medium priority to @ingorichter

[marcelgerber]

We should fix this before releasing Sprint 33.

[marcelgerber]

At 4a840ec, there is also this message:

CodeMirror mode "text/plain" is already used by language Text, won't register for Image 
LanguageManager.js:168

[redmunds]

Nominating for Sprint 34.

[peterflynn]

@SAplayer Good catch! That's unrelated to the cause of the original warning here, so I've spun it off separately as #5749.

[ingorichter]

@redmunds Would you mind having a look at this PR #5844?

[redmunds]

Confirmed. Closing.