fix for runaway regular expression on linux

explicitly set string dvars in quotes to allow setting empty dvars
allow piping in input from command line (#114)
update the distribution for top stats elo
prevent game log file rotation from stopping event parsing

Tests/ApplicationTests/IOTests.cs

@@ -0,0 +1,42 @@
+using FakeItEasy;
+using IW4MAdmin.Application.IO;
+using NUnit.Framework;
+using SharedLibraryCore;
+using SharedLibraryCore.Interfaces;
+using System;
+using System.Threading.Tasks;
+
+namespace ApplicationTests
+{
+    [TestFixture]
+    public class IOTests
+    {
+
+        [Test]
+        public async Task GameLogEventDetection_WorksAfterFileSizeReset()
+        {
+            var reader = A.Fake<IGameLogReader>();
+            var detect = new GameLogEventDetection(null, "", A.Fake<Uri>(), reader);
+
+            A.CallTo(() => reader.Length)
+                .Returns(100)
+                .Once()
+                .Then
+                .Returns(200)
+                .Once()
+                .Then
+                .Returns(10)
+                .Once()
+                .Then
+                .Returns(100);
+
+            for (int i = 0; i < 4; i++)
+            {
+                await detect.UpdateLogEvents();
+            }
+
+            A.CallTo(() => reader.ReadEventsFromLog(A<Server>.Ignored, A<long>.Ignored, A<long>.Ignored))
+                .MustHaveHappenedTwiceExactly();
+        }
+    }
+}