Added meeting notes

meeting_notes/2016-07-04.md

+# July 4th, 2016
+
+Everything is set up, students read the CONTRIBUTING guide. The following issues
+were assigned to the students:
+
+* https://gitlab.com/gitlab-org/gitlab-ce/issues/19408
+* https://gitlab.com/gitlab-org/gitlab-ce/issues/13864
+* https://gitlab.com/gitlab-org/gitlab-ce/issues/19420
+
+I suggested starting with the pending builds tab. Students working from home 2
+days this week, no problem with this.