[TxMt] Creating a Tcl mode

[Michael Sheets]

> There already exists a Tcl language syntax. It's just not bundled  
> with TextMate. Check out the subversion repository to get it:  
> http://macromates.com/wiki/pmwiki?n=Main.SubversionCheckout

Note that a svn checkout means you must keep it updated. Easier  
nowdays to just have the application since all the betas now include  
the default bundles. You can checkout just the specific bundle you  
need from svn however, a perfect solution.