Fix bug in _is_reachable(): some code needs more indenting.
Fix line character width...I was too excited that I actually got git to work.
Remove some whitespace... will this update the pull request?
Merge pull request #1 from mbforbes/is_reachable_bugfix_2

Fix bug in _is_reachable()
Fix incorrectly named method to save experiment state at shutdown.
Merge pull request #2 from mbforbes/fix_save_at_shutdown

Fix incorrectly named method to save experiment state at shutdown.
Fix receieve -> receive.
Merge pull request #3 from mbforbes/fix_spelling_receive

Fix receieve -> receive.
Merge branch 'groovy-devel' of github.com:PR2/pr2_pbd into groovy-devel