Added: Try Tag Parse with and without "Promo"

Fixes: #408

src/NzbDrone.Core.Test/ParserTests/ParserFixture.cs

@@ -56,6 +56,7 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("Mr. Bad Guy [Special Edition]", "Mr. Bad Guy")]
         [TestCase("Sweet Dreams (Album)", "Sweet Dreams")]
         [TestCase("Now What?! (Limited Edition)", "Now What?!")]
+        [TestCase("Random Album Title (Promo CD)", "Random Album Title")]
         public void should_remove_common_tags_from_album_title(string title, string correct)
         {
             var result = Parser.Parser.CleanAlbumTitle(title);

src/NzbDrone.Core/Parser/Parser.cs

@@ -202,7 +202,7 @@ namespace NzbDrone.Core.Parser
 
         private static readonly Regex[] CommonTagRegex = new Regex[] {
             new Regex(@"(\[|\()*\b((featuring|feat.|feat|ft|ft.)\s{1}){1}\s*.*(\]|\))*", RegexOptions.IgnoreCase | RegexOptions.Compiled),
-            new Regex(@"(\[|\(){1}(version|limited|deluxe|single|clean|album|special|bonus)+\s*.*(\]|\)){1}", RegexOptions.IgnoreCase | RegexOptions.Compiled),
+            new Regex(@"(\[|\(){1}(version|limited|deluxe|single|clean|album|special|bonus|promo)+\s*.*(\]|\)){1}", RegexOptions.IgnoreCase | RegexOptions.Compiled),
         };
         
         public static ParsedTrackInfo ParseMusicPath(string path)