Added "escape" hotkey to error state

lurker.lua

@@ -90,15 +90,25 @@ end
 function lurker.onerror(e, nostacktrace)
   lurker.print("An error occurred; switching to error state")
   lurker.state = "error"
-  for _, v in pairs(lovecallbacknames) do
-    love[v] = function() end
-  end
-  love.update = lurker.update
-  
+ 
   -- Release mouse
   local setgrab = love.mouse.setGrab or love.mouse.setGrabbed
   setgrab(false)
 
+  -- Set up callbacks
+  for _, v in pairs(lovecallbacknames) do
+    love[v] = function() end
+  end
+
+  love.update = lurker.update
+
+  love.keypressed = function(k)
+    if k == "escape" then
+      lurker.print("Exiting...")
+      love.event.quit()
+    end
+  end
+
   local stacktrace = nostacktrace and "" or
                      lume.trim((debug.traceback("", 2):gsub("\t", "")))
   local msg = lume.format("{1}\n\n{2}", {e, stacktrace})