Allow partial dates to be parsed from non-4.0 vCards

#155

Author: mangstadt

src/main/java/ezvcard/io/scribe/DateOrTimePropertyScribe.java

@@ -221,13 +221,12 @@ private T parse(String value, ParseContext context) {
 		try {
 			return newInstance(date(value));
 		} catch (IllegalArgumentException e) {
-			if (context.getVersion() == VCardVersion.V2_1 || context.getVersion() == VCardVersion.V3_0) {
-				throw new CannotParseException(5);
-			}
-
 			try {
 				return newInstance(PartialDate.parse(value));
 			} catch (IllegalArgumentException e2) {
+				if (context.getVersion() == VCardVersion.V2_1 || context.getVersion() == VCardVersion.V3_0) {
+					throw new CannotParseException(5);
+				}
 				context.addWarning(6);
 				return newInstance(value);
 			}

src/test/java/ezvcard/io/scribe/DateOrTimePropertyScribeTest.java

@@ -161,12 +161,9 @@ public void writeJson() {
 	public void parseText() {
 		sensei.assertParseText(dateExtendedStr).run(withDate);
 		sensei.assertParseText(dateTimeExtendedStr).run(withDateTime);
-		sensei.assertParseText(partialDate.toISO8601(false)).versions(V2_1, V3_0).cannotParse(5);
-		sensei.assertParseText(partialDate.toISO8601(false)).versions(V4_0).run(withPartialDate);
-		sensei.assertParseText(partialTime.toISO8601(false)).versions(V2_1, V3_0).cannotParse(5);
-		sensei.assertParseText(partialTime.toISO8601(false)).versions(V4_0).run(withPartialTime);
-		sensei.assertParseText(partialDateTime.toISO8601(false)).versions(V2_1, V3_0).cannotParse(5);
-		sensei.assertParseText(partialDateTime.toISO8601(false)).versions(V4_0).run(withPartialDateTime);
+		sensei.assertParseText(partialDate.toISO8601(false)).run(withPartialDate);
+		sensei.assertParseText(partialTime.toISO8601(false)).run(withPartialTime);
+		sensei.assertParseText(partialDateTime.toISO8601(false)).run(withPartialDateTime);
 		sensei.assertParseText(text).versions(V2_1, V3_0).cannotParse(5);
 		sensei.assertParseText(text).versions(V4_0).warnings(6).run(hasText(text));
 		sensei.assertParseText(text).versions(V2_1, V3_0).dataType(TEXT).cannotParse(5);