Merge branch 'bump_omniauth' into 'master'

Bump omniauth-gitlab and plugin versions



See merge request !3

plugin.rb

 # name:  discourse-omniauth-gitlab
 # about: Authenticate Discourse with GitLab
-# version: 0.0.2
+# version: 0.0.3
 # author: Achilleas Pipinellis
-gem 'omniauth-gitlab', '1.0.1'
+gem 'omniauth-gitlab', '1.0.2'
 class GitLabAuthenticator < ::Auth::Authenticator