Merge pull request #92 from JakeGinnivan/MinorFixes

Fixing some small issues with GitHubFlow

Author: andreasohlund

GitFlowVersion/GitHubFlow/GitHubFlowVersionFinder.cs

@@ -4,7 +4,7 @@ public class GitHubFlowVersionFinder
     {
         public VersionAndBranch FindVersion(GitVersionContext context)
         {
-            var repositoryDirectory = context.Repository.Info.Path;
+            var repositoryDirectory = context.Repository.Info.WorkingDirectory;
             var lastTaggedReleaseFinder = new LastTaggedReleaseFinder(context.Repository, repositoryDirectory);
             return new BuildNumberCalculator(new NextSemverCalculator(new NextVersionTxtFileFinder(repositoryDirectory),
                 lastTaggedReleaseFinder), lastTaggedReleaseFinder, context.Repository).GetBuildNumber(context);

GitFlowVersion/SemanticVersionTag.cs

@@ -8,6 +8,8 @@ public class SemanticVersionTag
 
         protected bool Equals(SemanticVersionTag other)
         {
+            if (other == null)
+                return false;
             return string.Equals(name, other.name);
         }