Use workdirCache for resolving projects without a git repo top level

Author: mattlyons0

lib/github-package.js

@@ -191,8 +191,12 @@ export default class GithubPackage {
       const activeDirectory = this.project.getDirectories().find(directory => {
         return directory.contains(item.getBuffer().getPath());
       });
-      const activeRepositoryPath = activeDirectory ? activeDirectory.getPath() : undefined;
-      this.scheduleActiveContextUpdate({activeRepositoryPath}, {item});
+
+      this.workdirCache.find(activeDirectory.getPath()).then(activeRepositoryPath => {
+        this.scheduleActiveContextUpdate({activeRepositoryPath}, {item});
+      }).catch(e => {
+        throw e;
+      });
     };
 
     const handleUseProjectFromActivePanelChange = newValue => {