New: Support "Series" instead of "Season" in season packs

Closes #4399

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

@@ -26,6 +26,7 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("My.Series.S2014.720p.HDTV.x264-ME", "My Series", 2014)]
         [TestCase("Series.Saison3.VOSTFR.HDTV.XviD-NOTAG", "Series", 3)]
         [TestCase("Series.SAISON.1.VFQ.PDTV.H264-ACC-ROLLED", "Series", 1)]
+        [TestCase("Series Title - Series 1 (1970) DivX", "Series Title", 1)]
         public void should_parse_full_season_release(string postTitle, string title, int season)
         {
             var result = Parser.Parser.ParseTitle(postTitle);

src/NzbDrone.Core/Parser/Parser.cs

@@ -240,11 +240,11 @@ namespace NzbDrone.Core.Parser
                     RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                 //Season only releases
-                new Regex(@"^(?<title>.+?)\W(?:S|Season|Saison)\W?(?<season>\d{1,2}(?!\d+))(\W+|_|$)(?<extras>EXTRAS|SUBPACK)?(?!\\)",
+                new Regex(@"^(?<title>.+?)[-_. ]+?(?:S|Season|Saison|Series)[-_. ]?(?<season>\d{1,2}(?![-_. ]?\d+))(\W+|_|$)(?<extras>EXTRAS|SUBPACK)?(?!\\)",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                 //4 digit season only releases
-                new Regex(@"^(?<title>.+?)\W(?:S|Season|Saison)\W?(?<season>\d{4}(?!\d+))(\W+|_|$)(?<extras>EXTRAS|SUBPACK)?(?!\\)",
+                new Regex(@"^(?<title>.+?)[-_. ]+?(?:S|Season|Saison|Series)[-_. ]?(?<season>\d{4}(?![-_. ]?\d+))(\W+|_|$)(?<extras>EXTRAS|SUBPACK)?(?!\\)",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                 //Episodes with a title and season/episode in square brackets