Moved new resend setting into feature section

That's where all other protocol specific settings are currently located.
Will be migrated at a later date into the printer profile instead (that
makes way more sense).
(cherry picked from commit d0f61e5)

src/octoprint/settings.py

@@ -83,9 +83,7 @@ default_settings = {
 			"sdStatus": 1
 		},
 		"additionalPorts": [],
-		"longRunningCommands": ["G4", "G28", "G29", "G30", "G32"],
-		"ignoreIdenticalResends": False,
-		"identicalResendsCountdown": 7
+		"longRunningCommands": ["G4", "G28", "G29", "G30", "G32"]
 	},
 	"server": {
 		"host": "0.0.0.0",
@@ -145,7 +143,9 @@ default_settings = {
 		"externalHeatupDetection": True,
 		"supportWait": True,
 		"keyboardControl": True,
-		"pollWatched": False
+		"pollWatched": False,
+		"ignoreIdenticalResends": False,
+		"identicalResendsCountdown": 7
 	},
 	"folder": {
 		"uploads": None,

src/octoprint/util/comm.py

@@ -238,7 +238,7 @@ class MachineCom(object):
 		self._lastResendNumber = None
 		self._currentResendCount = 0
 		self._resendSwallowNextOk = False
-		self._resendSwallowRepetitions = settings().getBoolean(["serial", "ignoreIdenticalResends"])
+		self._resendSwallowRepetitions = settings().getBoolean(["feature", "ignoreIdenticalResends"])
 		self._resendSwallowRepetitionsCounter = 0
 
 		self._clear_to_send = CountedEvent(max=10, name="comm.clear_to_send")
@@ -1435,7 +1435,7 @@ class MachineCom(object):
 			self._resendDelta = resendDelta
 			self._lastResendNumber = lineToResend
 			self._currentResendCount = 0
-			self._resendSwallowRepetitionsCounter = settings().getInt(["serial", "identicalResendsCountdown"])
+			self._resendSwallowRepetitionsCounter = settings().getInt(["feature", "identicalResendsCountdown"])
 
 			if self._resendDelta > len(self._lastLines) or len(self._lastLines) == 0 or self._resendDelta < 0:
 				self._errorValue = "Printer requested line %d but no sufficient history is available, can't resend" % lineToResend