Fixed: Parsing of quality in DP.WEB releases

Closes #4829

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

@@ -203,6 +203,7 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("[HorribleSubs] Series Title! S01 [Web][MKV][h264][720p][AAC 2.0][Softsubs (HorribleSubs)]", false)]
         [TestCase("[HorribleSubs] Series Title! S01 [Web][MKV][h264][AAC 2.0][Softsubs (HorribleSubs)]", false)]
         [TestCase("Series.Title.S04E13.960p.WEB-DL.AAC2.0.H.264-squalor", false)]
+        [TestCase("Series.Title.S16.DP.WEB.720p.DDP.5.1.H.264.PLEX", 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|HD-?DVD|BDMux|BD(?!$))|
-                                                                (?<webdl>WEB[-_. ]DL|WEBDL|AmazonHD|iTunesHD|MaxdomeHD|NetflixU?HD|WebHD|[. ]WEB[. ](?:[xh]26[45]|DDP?5[. ]1)|[. ](?-i:WEB)$|\d+0p(?:[-. ]AMZN)?[-. ]WEB[-. ]|WEB-DLMux|\b\s\/\sWEB\s\/\s\b|AMZN[. ]WEB[. ]|NF[. ]WEB[. ])|
+                                                                (?<webdl>WEB[-_. ]DL|WEBDL|AmazonHD|iTunesHD|MaxdomeHD|NetflixU?HD|WebHD|[. ]WEB[. ](?:[xh]26[45]|DDP?5[. ]1)|[. ](?-i:WEB)$|\d+0p(?:[-. ]AMZN)?[-. ]WEB[-. ]|WEB-DLMux|\b\s\/\sWEB\s\/\s\b|(?:AMZN|NF|DP)[. ]WEB[. ])|
                                                                 (?<webrip>WebRip|Web-Rip|WEBMux)|
                                                                 (?<hdtv>HDTV)|
                                                                 (?<bdrip>BDRip|BDLight)|