Added resource checks to slave recovery tests to ensure resources are re-offered after restarts.
Added resource checks to slave recovery tests to ensure resources
are re-offered after restarts.

From: Ian Downes <cc23aa112c09e741bd4ffa815e03cf15ab255ad1@gmail.com>
Review: https://reviews.apache.org/r/13764

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