add travis build status badge

[alohr51]

What was fixed? (Issue # or description of fix)

I setup cron jobs for the kabanero-landing travis build to run a build with the master branch every day, this badge will reflect those build status' .

Were the changes tested on

• [ ] Firefox (Desktop)
• [ ] Safari (Desktop)
• [ ] Chrome (Desktop)
• [ ] Internet Explorer (Desktop)
• [ ] iOS (Mobile)
• [ ] Android (Mobile)

  Running validation tools

• [ ] https://validator.w3.org/checklink
• [ ] https://validator.w3.org
• [ ] Dymanic Accessability Plugin (DAP)