inherit is a valid class name (see #32)

Author: rbri

src/main/javacc/CSS3Parser.jj

@@ -1212,7 +1212,7 @@ Condition _class(boolean pseudoElementFound) :
             locator = createLocator(token);
         }
 
-        t = <IDENT>
+        ( t = <IDENT> | t = <INHERIT> )
         {
             if (pseudoElementFound) { throw pe; }
             return new ClassCondition(unescape(t.image, false), locator);

src/test/java/org/htmlunit/cssparser/parser/CSS3ParserTest.java

@@ -4525,6 +4525,23 @@ public void doubleColonsPseudoClass() throws Exception {
         assertEquals("h1::link { color: red; }", rule.getCssText());
     }
 
+    /**
+     * @throws Exception if the test fails
+     */
+    @Test
+    public void inheritClassName() throws Exception {
+        final String css = ".inherit { color: red }\n";
+
+        final CSSStyleSheetImpl sheet = parse(css);
+        final CSSRuleListImpl rules = sheet.getCssRules();
+
+        assertEquals(1, rules.getLength());
+
+        final AbstractCSSRuleImpl rule = rules.getRules().get(0);
+        assertEquals("*.inherit { color: red; }", rule.toString());
+        assertEquals("*.inherit { color: red; }", rule.getCssText());
+    }
+
 //
 //    /**
 //     * @throws Exception if any error occurs