Display the Gem::SystemExitException if there is a rubygems
configuration problem
clean up gem error printing
Correct Thor error name
Revert "refresh so that `bundle exec bundle -v` works again"

This reverts commit 7b748268997d7522c1b3507b52ce61e7716b2e42, and thus
fixes #2454.

The refresh doesn't seem to be necessary... though the original commit
was a bit vague on exactly what it was setting out to fix.
Fix #2502
reword (hopefully for clarity)
license whitespace spec fix
trailing whitespace is how this works
Merge branch '1-3-stable'