Travis touch up: make the site recognition use the full name

Because, haha, the "imageworks" Travis account is still Travis, its not
the SPI internal machine configuration. So searching 'uname -n' for
"imageworks" is misleading! But searching for "imageworks.com" is ok.

Author: lgritz

.travis.yml

@@ -4,6 +4,7 @@ language: cpp
 sudo: false
 osx_image: xcode7.3
 dist: trusty
+env: OSL_SITE=travis
 
 
 # Add-ons: specify apt packages for Linux

Makefile

@@ -38,10 +38,10 @@ CMAKE ?= cmake
 ifndef OSL_SITE
     OSL_SITE := ${shell uname -n}
 endif
-ifneq (${shell echo ${OSL_SITE} | grep imageworks},)
+ifneq (${shell echo ${OSL_SITE} | grep imageworks.com},)
 include ${working_dir}/site/spi/Makefile-bits
 endif
-ifneq (${shell echo ${OSL_SITE} | grep pixar},)
+ifneq (${shell echo ${OSL_SITE} | grep pixar.com},)
 include ${working_dir}/site/pixar/Makefile-bits
 endif