Fix TO parsing when there is a comma inside a quoted display/value

This bug was introduced during the re-factoring of the TO parser to support multple body parts - see 908b9f1

Reported by Tito Cumpen <tito@xsvoce.com>

(cherry picked from commit 769fb3c)

parser/parse_to.c

@@ -205,6 +205,8 @@ static inline char* parse_to_param(char *buffer, char *end,
 			case ',':
 				switch (status)
 				{
+					case PARA_VALUE_QUOTED:
+						break;
 					case PARA_NAME:
 						param->name.len = tmp-param->name.s;
 					case S_EQUAL:
@@ -589,6 +591,8 @@ static inline char* _parse_to(char* buffer, char *end, struct to_body *to_b,
 			case ',':
 				switch (status)
 				{
+					case DISPLAY_QUOTED:
+						break;
 					case URI_OR_TOKEN:
 					case MAYBE_URI_END:
 						to_b->uri.len = tmp - to_b->uri.s;