Remove UTR measures introduced after 2012-11-30

At this time the SEC accepts the following registry:
http://www.xbrl.org/utr/2012-11-30/utr.xml
Better format AUTHORS.md and LICENSE.md
Move To-Do back into repo

Move the To-Do items out of workflowy and back into TODO.md.
Move help instructions into CONTRIBUTING.md
Version bump to 1.6.5
Remove unnecessary text log clearing

Clear textLog before attempting to open a file. Removes some redundant
code.
Bump version to 1.6.6
Create unit test for Bridge link role sorting
Create unit test for renaming files
Add test for removing date from client namespace
Add Bridge link role sorting function
Add function to strip date from client namespace
Add function to rename taxonomy
Add Bridge Prep utility to UI
Update icons_rc.py
Add Bridge Prep utility
Add Bridge Prep utility description to README
Add Bridge Link Role Sort utility to UI
Add Bridge Link Role Sort utility
Add Bridge Link Role Sort utility to README