Crashes when saving a search. i.e. pressing % in search mode.

[cmrichards]

After doing a search, pressing % to save it causes this crash :

/home/chrisr/code/play/turnsole/lib/turnsole/modes/search-results-mode.rb:9:in `save_search': uninitialized constant     Turnsole::SearchResultsMode::BufferManager (NameError)
from /home/chrisr/code/play/turnsole/lib/turnsole/input.rb:39:in `handle'
from /home/chrisr/code/play/turnsole/lib/turnsole/ui.rb:69:in `block in step'
from /home/chrisr/code/play/turnsole/lib/turnsole/ui.rb:100:in `block in spawn_fiber'