Merge pull request #473 from Flow-Launcher/version_bump_explorer

dev branch only: Explorer plugin version bump for PR 449

Author: jjw24

Plugins/Flow.Launcher.Plugin.Explorer/plugin.json

@@ -9,7 +9,7 @@
   "Name": "Explorer",
   "Description": "Search and manage files and folders. Explorer utilises Windows Index Search",
   "Author": "Jeremy Wu",
-  "Version": "1.7.7",
+  "Version": "1.8.0",
   "Language": "csharp",
   "Website": "https://github.com/Flow-Launcher/Flow.Launcher",
   "ExecuteFileName": "Flow.Launcher.Plugin.Explorer.dll",