Started working on new conversation / address validation

Dumped Classes/IMFoundation_ClassDump.h

@@ -1898,3 +1898,29 @@ typedef void (^CDUnknownBlockType)(void); // return type and parameters are unkn
 - (void)differencesFromArray:(id)arg1 removedIndexes:(id *)arg2 insertedIndexes:(id *)arg3;
 @end
 
+extern BOOL IMStringIsEmail (NSString *string);
+
+extern NSString* IMStripFormattingFromAddress (NSString *address);
+
+typedef void(^IMChatCalculateServiceForSendingCompletionBlock) (BOOL          allAddressesiMessageCapable,
+                                                                NSDictionary *availabilityPerRecipient,
+                                                                BOOL          checkedServer,
+                                                                NSError      *error);
+
+extern void IMChatCalculateServiceForSendingNewComposeMaybeForce (NSArray   *addresses,
+                                                                  NSString  *senderLastAddressedHandle,
+                                                                  NSString  *senderLastAddressedSIMID,
+                                                                  BOOL       forceMMS,
+                                                                  BOOL       hasEmailRecipients,
+                                                                  BOOL       lastSentMessageWasNotDelivered,
+                                                                  BOOL       conversationWasDowngraded,
+                                                                  BOOL       hasConversationHistory,
+                                                                  IMService *previousService,
+                                                                  IMChatCalculateServiceForSendingCompletionBlock completion);
+
+
+// IDS
+
+extern NSString *IDSCopyIDForPhoneNumber(NSString *phoneNumber);
+extern NSString *IDSCopyIDForEmailAddress(NSString *emailAddress);
+