Update to Modern Objective-C syntax

Author: kharrison

TwitterSearch/TwitterSearch.xcodeproj/project.pbxproj

@@ -227,11 +227,11 @@
 			buildSettings = {
 				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
-				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_C_LANGUAGE_STANDARD = "compiler-default";
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PREPROCESSOR_DEFINITIONS = DEBUG;
 				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
-				GCC_VERSION = com.apple.compilers.llvmgcc42;
+				GCC_VERSION = "";
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 6.0;
@@ -244,8 +244,8 @@
 			buildSettings = {
 				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
-				GCC_C_LANGUAGE_STANDARD = gnu99;
-				GCC_VERSION = com.apple.compilers.llvmgcc42;
+				GCC_C_LANGUAGE_STANDARD = "compiler-default";
+				GCC_VERSION = "";
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 6.0;

TwitterSearch/TwitterSearch/SearchViewController.m

@@ -147,8 +147,8 @@ - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(N
     }
 
     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:ResultCellIdentifier];    
-    NSDictionary *tweet = [self.results objectAtIndex:indexPath.row];
-    cell.textLabel.text = [tweet objectForKey:@"text"];
+    NSDictionary *tweet = (self.results)[indexPath.row];
+    cell.textLabel.text = tweet[@"text"];
     return cell;
 }
 
@@ -228,10 +228,10 @@ - (void)connectionDidFinishLoading:(NSURLConnection *)connection
     NSError *jsonParsingError = nil;
     NSDictionary *jsonResults = [NSJSONSerialization JSONObjectWithData:self.buffer options:0 error:&jsonParsingError];
 
-    self.results = [jsonResults objectForKey:@"statuses"];
+    self.results = jsonResults[@"statuses"];
     if ([self.results count] == 0)
     {
-        NSArray *errors = [jsonResults objectForKey:@"errors"];
+        NSArray *errors = jsonResults[@"errors"];
         if ([errors count])
         {
             self.searchState = UYLTwitterSearchStateFailed;