Added test to check if environment variable has some formattable string, that we don't format this.  Fix for this was in latest build pack utils.
Added test to check if environment variable has some formattable string, that we don't format this.  Fix for this was in latest build pack utils.

jan-randis/php-db2-mysql-buildpack,skeeso/php-buildpack,zhangyanfa/yanfaz-php-buildpack,nsharma283/php-new,nsharma283/PCF-php-buildpack,skysports-digitalmedia/php-buildpack,nsharma283/php-new,cloudfoundry/php-buildpack,LeonidLe/php-buildpack,arjankroontolsma/post2,jan-randis/php-db2-mysql-buildpack,nsharma283/PCF-php-buildpack,jsloyer/php-buildpack,hjooyang/php-buildpack,hjooyang/php-buildpack-3.2.2-,nsharma283/PCF-php-buildpack,nsharma283/PCF-php-buildpack,skeeso/php-buildpack,Orange-OpenSource/cf-php-build-pack,nsharma283/php-buildpack,hjooyang/php-buildpack,chregu/cf-php-varnish-buildpack,cloudfoundry/php-buildpack,UNINETT/php-buildpack,nsharma283/PCF-php-buildpack,jsloyer/php-buildpack,jan-randis/php-db2-mysql-buildpack,LeonidLe/php-buildpack,jan-randis/php-db2-mysql-buildpack,svennam92/php-buildpack,hpcloud/php-buildpack,tgemal00/php-buildpack,ashish17das/cf-php-build,hjooyang/php-buildpack-3.2.2-,svennam92/php-buildpack,ashish17das/cf-php-build,ashish17das/cf-php-build,skysports-digitalmedia/php-buildpack,apawar2/php-buildpack,tgemal00/php-buildpack,zizhongwei/php-buildpack-master,aronreid/cf-php-buildpack,hairmare/php-buildpack,svennam92/php-buildpack,arjankroontolsma/post2,skeeso/php-buildpack,hpcloud/php-buildpack,aronreid/cf-php-buildpack,mc500/php-buildpack,nkatre/php-buildpack,cf-identity/php-buildpack,cf-identity/php-buildpack,svennam92/php-buildpack,mc500/php-buildpack,svrc-pivotal/php-buildpack,cf-identity/php-buildpack,hjooyang/php-buildpack,cloudfoundry/php-buildpack,lloydbadger/test,nkatre/php-buildpack,nsharma283/php-new,ochamber/cf-php-build-pack,mc500/php-buildpack,LeonidLe/php-buildpack,skeeso/php-buildpack,LeonidLe/php-buildpack,zizhongwei/php-buildpack-master,lloydbadger/test,apawar2/php-buildpack,UNINETT/php-buildpack,LeonidLe/php-buildpack,hjooyang/php-buildpack-3.2.2-,hairmare/php-buildpack,nsharma283/PCF-php-buildpack,nsharma283/php-new,zhangyanfa/yanfaz-php-buildpack,chregu/cf-php-varnish-buildpack,ArthurHlt/php-buildpack,aronreid/cf-php-buildpack,zhangyanfa/yanfaz-php-buildpack,apawar2/php-buildpack,jsloyer/php-buildpack,skysports-digitalmedia/php-buildpack,ochamber/cf-php-build-pack,hairmare/php-buildpack,arjankroontolsma/post2,hjooyang/php-buildpack-3.2.2-,tgemal00/php-buildpack,apawar2/php-buildpack,thesrinivas/php-buildpack,svennam92/php-buildpack,thesrinivas/php-buildpack,svrc-pivotal/php-buildpack,hairmare/php-buildpack,hairmare/php-buildpack,aronreid/cf-php-buildpack,ochamber/cf-php-build-pack,skeeso/php-buildpack,nkatre/php-buildpack,svrc-pivotal/php-buildpack,thesrinivas/php-buildpack,nkatre/php-buildpack,nsharma283/php-buildpack,Orange-OpenSource/cf-php-build-pack,aronreid/cf-php-buildpack,ochamber/cf-php-build-pack,lloydbadger/test,skysports-digitalmedia/php-buildpack,apawar2/php-buildpack,zhangyanfa/yanfaz-php-buildpack,zhangyanfa/yanfaz-php-buildpack,ArthurHlt/php-buildpack,zizhongwei/php-buildpack-master,cloudfoundry/php-buildpack,aronreid/cf-php-buildpack,hairmare/php-buildpack,cf-identity/php-buildpack,chregu/cf-php-varnish-buildpack,UNINETT/php-buildpack,hpcloud/php-buildpack,chregu/cf-php-varnish-buildpack,svennam92/php-buildpack,skeeso/php-buildpack,cf-identity/php-buildpack,cf-identity/php-buildpack,jan-randis/php-db2-mysql-buildpack,zizhongwei/php-buildpack-master,nsharma283/php-new,ochamber/cf-php-build-pack,svrc-pivotal/php-buildpack,hjooyang/php-buildpack,hairmare/php-buildpack,ashish17das/cf-php-build,nkatre/php-buildpack,skysports-digitalmedia/php-buildpack,svrc-pivotal/php-buildpack,chregu/cf-php-varnish-buildpack,hjooyang/php-buildpack,skysports-digitalmedia/php-buildpack,ArthurHlt/php-buildpack,svrc-pivotal/php-buildpack,hjooyang/php-buildpack-3.2.2-,UNINETT/php-buildpack,arjankroontolsma/post2,arjankroontolsma/post2,nkatre/php-buildpack,zizhongwei/php-buildpack-master,nsharma283/php-buildpack,mc500/php-buildpack,tgemal00/php-buildpack,zizhongwei/php-buildpack-master,ArthurHlt/php-buildpack,chregu/cf-php-varnish-buildpack,cloudfoundry/php-buildpack,nsharma283/php-buildpack,arjankroontolsma/post2,ochamber/cf-php-build-pack,nsharma283/php-new,hpcloud/php-buildpack,ArthurHlt/php-buildpack,Orange-OpenSource/cf-php-build-pack,tgemal00/php-buildpack,thesrinivas/php-buildpack,mc500/php-buildpack,thesrinivas/php-buildpack,cloudfoundry/php-buildpack,LeonidLe/php-buildpack,lloydbadger/test,nsharma283/php-buildpack,hjooyang/php-buildpack-3.2.2-,cloudfoundry/php-buildpack,ashish17das/cf-php-build,jsloyer/php-buildpack,ashish17das/cf-php-build,tgemal00/php-buildpack,UNINETT/php-buildpack,hpcloud/php-buildpack,lloydbadger/test,hpcloud/php-buildpack,nsharma283/php-buildpack,hjooyang/php-buildpack,UNINETT/php-buildpack,jsloyer/php-buildpack,zhangyanfa/yanfaz-php-buildpack,apawar2/php-buildpack,lloydbadger/test,cf-identity/php-buildpack,jan-randis/php-db2-mysql-buildpack,thesrinivas/php-buildpack,ArthurHlt/php-buildpack,mc500/php-buildpack,jsloyer/php-buildpack