Added linter for license headers in some file types.
Added linter for license headers in some file types.

Review: https://reviews.apache.org/r/40445

kaysoky/mesos,Gilbert88/mesos,jpeach/mesos,andschwa/mesos,chhsia0/mesos,Aman-Jain-14/customizedMesos,Aman-Jain-14/customizedMesos,verizonlabs/mesos,dforsyth/mesos,craimbert/mesos,craimbert/mesos,Aman-Jain-14/customizedMesos,dforsyth/mesos,andschwa/mesos,gsantovena/mesos,craimbert/mesos,craimbert/mesos,chhsia0/mesos,Aman-Jain-14/customizedMesos,craimbert/mesos,Gilbert88/mesos,craimbert/mesos,abudnik/mesos,andschwa/mesos,kaysoky/mesos,verizonlabs/mesos,reneploetz/mesos,zmalik/mesos,neilconway/mesos,reneploetz/mesos,chhsia0/mesos,jpeach/mesos,asamerh4/mesos,neilconway/mesos,Gilbert88/mesos,gsantovena/mesos,asamerh4/mesos,chhsia0/mesos,kaysoky/mesos,kaysoky/mesos,andschwa/mesos,Gilbert88/mesos,reneploetz/mesos,abudnik/mesos,reneploetz/mesos,zmalik/mesos,dforsyth/mesos,verizonlabs/mesos,chhsia0/mesos,zmalik/mesos,jpeach/mesos,verizonlabs/mesos,abudnik/mesos,yuquanshan/customizedMesos,verizonlabs/mesos,yuquanshan/customizedMesos,jpeach/mesos,gsantovena/mesos,chhsia0/mesos,asamerh4/mesos,craimbert/mesos,neilconway/mesos,yuquanshan/customizedMesos,yuquanshan/customizedMesos,asamerh4/mesos,abudnik/mesos,andschwa/mesos,jpeach/mesos,asamerh4/mesos,Aman-Jain-14/customizedMesos,asamerh4/mesos,zmalik/mesos,kaysoky/mesos,neilconway/mesos,jpeach/mesos,chhsia0/mesos,gsantovena/mesos,zmalik/mesos,Aman-Jain-14/customizedMesos,Aman-Jain-14/customizedMesos,dforsyth/mesos,gsantovena/mesos,Gilbert88/mesos,kaysoky/mesos,zmalik/mesos,kaysoky/mesos,reneploetz/mesos,dforsyth/mesos,abudnik/mesos,verizonlabs/mesos,Gilbert88/mesos,abudnik/mesos,jpeach/mesos,yuquanshan/customizedMesos,neilconway/mesos,reneploetz/mesos,asamerh4/mesos,gsantovena/mesos,abudnik/mesos,neilconway/mesos,gsantovena/mesos,neilconway/mesos,yuquanshan/customizedMesos,andschwa/mesos,dforsyth/mesos,zmalik/mesos,reneploetz/mesos,yuquanshan/customizedMesos,verizonlabs/mesos,dforsyth/mesos,andschwa/mesos,Gilbert88/mesos