Fix issue with travis setup script

The setup_ruby_env.sh script in the manageiq repo uses incorrect
relative pathing.  For now, just make sure we cd into the directory
before sourcing it in.

tools/ci/before_install.sh

@@ -5,8 +5,7 @@ git clone https://github.com/ManageIQ/manageiq.git --depth 1 spec/manageiq
 cd spec/manageiq
 source tools/ci/setup_vmdb_configs.sh
 source tools/ci/setup_js_env.sh
+source tools/ci/setup_ruby_env.sh
 cd -
 
-source spec/manageiq/tools/ci/setup_ruby_env.sh
-
 set +v