[TxMt] TODO bundle running slow

[Dave Baldwin]

Tried to use the TODO bundle and it was taking an age (10s of  
seconds) to give me a result.  Some puts in the command code showed  
it was parsing all the text files in the directory and sub  
directories that the project file resided in.  These files are a  
super set of the ones in the project draw - I only expected it to  
search in the project specific files.  As a contrast using the 'find  
in project command' to search for TODO returns instantly.

Dave.