Attempt to fix travis timeouts during apt-get. (#528)
Attempt to fix travis timeouts during apt-get. (#528)

* Attempt to fix travis timeouts during apt-get.

During some builds, travis fails to update the apt-get indexes.
This causes the build to fail in different ways.

This patch attempts to avoid this issue by manually calling
apt-get update. I'm not sure if it'll work, but it's worth a try.

* Fix missing semicolons in command

google/benchmark,mockingbirdnest/benchmark,mockingbirdnest/benchmark,google/benchmark,mockingbirdnest/benchmark,google/benchmark,mockingbirdnest/benchmark