Allow for users to enabled release mode debugging

* If a ENV var is set then the menu options are present

* This PR also prevents some menu options from throwing exceptions if
  the main window is closed.

* This PR also adds file logging so that in production logs can still be
  obtained

Signed-off-by: Sebastian Malton <smalton@mirantis.com>

.gitignore

@@ -9,3 +9,4 @@ static/build/**
 binaries/client/
 binaries/server/
 locales/**/**.js
+lens.log