Don't show useless "Broken Pipe" errors
"Forgot username" tests weren't doing a complete tearDown()
Remove leading underscore from UI test helpers
Add and use helpers for common find and click operations
Kill database delays on "Edit Plot"
Use different names for "Add Tree" and "Add Feature" radio buttons
Update "Add Tree" helpers to navigate through steps

Also detect successful "Add Tree" rather than using DATABASE_DELAY
Merge pull request #1225 from RickMohr/fix-ui-tests

Fix ui tests