opening plain text files with .text extension converts them to HTML without warning

What steps will reproduce the problem?
1. create a file with plain text and a .text extension (common for Markdown 
users)
2. open the file with .text extension, add something, save the file
3. get loads of HTML that have to be edited out later

What is the expected output? What do you see instead?

I expect that, since this was a pre-existing plain text file, it should stay 
plain text.

Two possible solutions:
* Treat the .text extension as plain text, like apparently happens with the 
.txt extension (easy solution, but not ideal)
* If opening a pre-existing file that is not HTML, then keep it as plain text, 
regardless of file extension (better solution, but likely more work to 
implement)

What version of the product are you using? On what operating system?

0.8-silent, Fedora 15

Aside from this issue, this is a great little program- thanks for the hard 
work, much appreciated!

Original issue reported on code.google.com by luis.vi...@gmail.com on 26 Jun 2011 at 12:54

iasp / textroom

opening plain text files with .text extension converts them to HTML without warning #79