Merge pull request #12029 from s0undt3ch/2014.1

[2014.1] Update to latest bootstrap-script.sh, v2014.04.16
lint fix
Don't safe-load longs

This causes breakage when the primary timeout is reached and the master
tries to lookup the status of the running job.
Merge pull request #12044 from terminalmage/dont-safe_load-longs

Don't safe-load longs
Add updated release notes for 2014.1.2 and 2014.1.3
bump version to 2014.1.3
Provide a way to specify the VM's name prefix.