Merge pull request #27 from IBM-Swift/issue_846

Have Bool serialized as true/false

Author: kweinmeister

Source/LclJSONSerialization.swift

@@ -159,6 +159,8 @@ private struct JSONWriter {
             try serializeString(str)
         } else if obj is Int || obj is Float || obj is Double || obj is UInt {
             writer(String(describing: obj))
+	} else if let boolValue = obj as? Bool {
+            serializeBool(boolValue)
 	} else if let num = obj as? NSNumber {
             try serializeNumber(num)
         } else if let array = obj as? Array<Any> {
@@ -205,6 +207,15 @@ private struct JSONWriter {
         writer("\"")
     }
 
+    func serializeBool(_ bool: Bool) {
+        switch bool {
+        case true:
+            writer("true")
+        case false:
+            writer("false")
+        }
+    }
+
     mutating func serializeNumber(_ num: NSNumber) throws {
         if num.doubleValue.isInfinite || num.doubleValue.isNaN {
             throw NSError(domain: NSCocoaErrorDomain, code: CocoaError.propertyListReadCorrupt.rawValue, userInfo: ["NSDebugDescription" : "Number cannot be infinity or NaN"])