Can't download Simian Army binaries during 'make library'

[ovlords]

When executing the 'make library' makefile target, downloading of Simian Army failed.

https://dl.bintray.com/netflixoss/maven/com/netflix/simianarmy/simianarmy/{{ library.simian_army_version }}/simianarmy-{{ library.simian_army_version }}.war