Add convenience initializer for the Type Selector

HTMLKit/CSSTypeSelector.h

@@ -14,6 +14,8 @@
 @property (nonatomic, copy) NSString *type;
 
 + (instancetype)universalSelector;
++ (instancetype)selectorForType:(NSString *)type;
+
 - (instancetype)initWithType:(NSString *)type;
 
 @end

HTMLKit/CSSTypeSelector.m

@@ -23,6 +23,11 @@
 	return [[self alloc] initWithType:@"*"];
 }
 
++ (instancetype)selectorForType:(NSString *)type
+{
+	return [[self alloc] initWithType:type];
+}
+
 - (instancetype)initWithType:(NSString *)type
 {
 	self = [super init];