tasks #6603: bootstrap style for renderer tabs

Change-Id: I48ec1ec7389826fbf6ceb7747468691023ee3bd8
Merge commit 'refs/changes/32/2232/3' of ssh://gerrit.tuleap.net:29418/tuleap into tuleap-stable-master

* ssh://gerrit.tuleap.net:29418/tuleap:
  tasks #6603: bootstrap style for renderer tabs

Conflicts:
	plugins/tracker/include/Tracker/Report/Tracker_Report_Renderer_Table.class.php

Change-Id: I73e6976b1b2a41d3656f0f533cddc8d55a87e401
Tuleap 6.12.99.11

Change-Id: I293ae7ccd5ca57987e221a238ed3db8b1cdf38eb