Fixed: Parsing of WEB-DLMux files

Closes #2422

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

@@ -152,6 +152,8 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("Incorporated.S01E08.Das.geloeschte.Ich.German.DD51.Dubbed.DL.720p.AmazonHD.x264-TVS", false)]
         [TestCase("Marco.Polo.S01E11.One.Hundred.Eyes.2015.German.DD51.DL.720p.NetflixUHD.x264.NewUp.by.Wunschtante", false)]
         [TestCase("Hush 2016 German DD51 DL 720p NetflixHD x264-TVS", false)]
+        [TestCase("Community.6x10.Basic.RV.Repair.and.Palmistry.ITA.ENG.720p.WEB-DLMux.H.264-GiuseppeTnT", false)]
+        [TestCase("Community.6x11.Modern.Espionage.ITA.ENG.720p.WEB.DLMux.H.264-GiuseppeTnT", false)]
         public void should_parse_webdl720p_quality(string title, bool proper)
         {
             ParseAndVerifyQuality(title, Quality.WEBDL720p, proper);

src/NzbDrone.Core/Parser/QualityParser.cs

@@ -16,7 +16,7 @@ namespace NzbDrone.Core.Parser
 
         private static readonly Regex SourceRegex = new Regex(@"\b(?:
                                                                 (?<bluray>BluRay|Blu-Ray|HDDVD|BD)|
-                                                                (?<webdl>WEB[-_. ]DL|WEBDL|WebRip|AmazonHD|iTunesHD|NetflixU?HD|WebHD|[. ]WEB[. ](?:[xh]26[45]|DD5[. ]1)|\d+0p[. ]WEB[. ])|
+                                                                (?<webdl>WEB[-_. ]DL|WEBDL|WebRip|AmazonHD|iTunesHD|NetflixU?HD|WebHD|[. ]WEB[. ](?:[xh]26[45]|DD5[. ]1)|\d+0p[. ]WEB[. ]|WEB-DLMux)|
                                                                 (?<hdtv>HDTV)|
                                                                 (?<bdrip>BDRip)|
                                                                 (?<brrip>BRRip)|