consistency in response headers

git-svn-id: http://dev.piwik.org/svn/trunk@2216 59fd770c-687e-43c8-a1e3-f5a4ff64c105

core/API/ResponseBuilder.php

@@ -119,7 +119,7 @@ class Piwik_API_ResponseBuilder
 					"</result>";
 			break;
 			case 'json':
-				@header( "Content-type: application/json" );
+				@header( "Content-Type: application/json" );
 				// we remove the \n from the resulting string as this is not allowed in json
 				$message = str_replace("\n","",$message);
 				$return = '{"result":"error", "message":"'.$message.'"}';
@@ -230,7 +230,7 @@ class Piwik_API_ResponseBuilder
 					"</result>";
 			break;
 			case 'json':
-				@header( "Content-type: application/json" );
+				@header( "Content-Type: application/json" );
 				$return = '{"result":"success", "message":"'.$message.'"}';
 			break;
 			case 'php':
@@ -242,7 +242,7 @@ class Piwik_API_ResponseBuilder
 			break;
 			
 			case 'csv':
-				header("Content-type: application/vnd.ms-excel");
+				header("Content-Type: application/vnd.ms-excel");
 				header("Content-Disposition: attachment; filename=piwik-report-export.csv");	
 				$return = "message\n".$message;
 			break;

core/DataTable/Renderer/Csv.php

@@ -258,7 +258,7 @@ class Piwik_DataTable_Renderer_Csv extends Piwik_DataTable_Renderer
 			return 'No data available';
 		}
 		// silent fail otherwise unit tests fail
-		@header("Content-type: application/vnd.ms-excel");
+		@header("Content-Type: application/vnd.ms-excel");
 		@header("Content-Disposition: attachment; filename=piwik-report-export.csv");
 		if($this->convertToUnicode 
 			&& function_exists('mb_convert_encoding'))

core/ViewDataTable/GenerateGraphData.php

@@ -89,7 +89,7 @@ abstract class Piwik_ViewDataTable_GenerateGraphData extends Piwik_ViewDataTable
 
 		if (!Zend_Registry::get('config')->General->serve_widget_and_data)
 		{
-			@header( "Content-type: application/json" );
+			@header( "Content-Type: application/json" );
 		}
 
 		// Graphs require the full dataset, setting limit to null (same as 'no limit')