use correct variable name
access host name from graph item
undo changing variable names; access host via the graph_item
Merge branch 'graph_items_from_hosts' into integration
add logging
Merge branch 'graph_items_from_hosts' into integration
remove nil check because i reversed the logic in a previous commit
Merge branch 'graph_items_from_hosts' into integration
escape backslashes in item keys and trigger expressions
Merge branch 'graph_items_from_hosts' into integration

Conflicts:
	providers/trigger.rb
add a missing comma; remove an old comment that isn't needed
Merge branch 'graph_items_from_hosts' into integration
remove gsubs because they don't work; must escape manually
Merge branch 'graph_items_from_hosts' into integration