Make REMOTE_HOST optional as argument or pull from environment variable.
Make REMOTE_HOST optional as argument or pull from environment variable.

dmikusa-pivotal/cf-php-buildpack-binary-build-scripts,cloudn/cf-php-buildpack-binary-build-scripts,cloudn/cf-php-buildpack-binary-build-scripts,dmikusa-pivotal/cf-php-buildpack-binary-build-scripts