[MNG-3940] Interpolation of environment variables is not case-insensitive on Windows
[MNG-3940] Interpolation of environment variables is not case-insensitive on Windows

o Updated to plexus-utils:1.5.6 which includes PLXUTILS-82
o Merged from r729060

git-svn-id: 2c527eb49caa05e19d6b2be874bf74fa9d7ea670@729066 13f79535-47bb-0310-9956-ffa450edef68

stephenc/maven,ChristianSchulte/maven,njuneau/maven,changbai1980/maven,mcculls/maven,likaiwalkman/maven,karthikjaps/maven,barthel/maven,wangyuesong0/maven,rogerchina/maven,aheritier/maven,atanasenko/maven,xasx/maven,aheritier/maven,wangyuesong/maven,rogerchina/maven,dsyer/maven,kidaa/maven-1,lbndev/maven,aheritier/maven,trajano/maven,kidaa/maven-1,cstamas/maven,barthel/maven,xasx/maven,mizdebsk/maven,Mounika-Chirukuri/maven,runepeter/maven-deploy-plugin-2.8.1,apache/maven,njuneau/maven,apache/maven,changbai1980/maven,rogerchina/maven,skitt/maven,trajano/maven,vedmishr/demo1,wangyuesong0/maven,Distrotech/maven,keith-turner/maven,josephw/maven,dsyer/maven,likaiwalkman/maven,olamy/maven,Tibor17/maven,Distrotech/maven,wangyuesong/maven,mizdebsk/maven,ChristianSchulte/maven,atanasenko/maven,josephw/maven,runepeter/maven-deploy-plugin-2.8.1,Mounika-Chirukuri/maven,trajano/maven,olamy/maven,gorcz/maven,xasx/maven,atanasenko/maven,keith-turner/maven,olamy/maven,skitt/maven,karthikjaps/maven,skitt/maven,gorcz/maven,pkozelka/maven,mizdebsk/maven,lbndev/maven,pkozelka/maven,Tibor17/maven,Mounika-Chirukuri/maven,lbndev/maven,mcculls/maven,barthel/maven,kidaa/maven-1,josephw/maven,cstamas/maven,stephenc/maven,gorcz/maven,njuneau/maven,changbai1980/maven,pkozelka/maven,apache/maven,wangyuesong/maven,vedmishr/demo1,ChristianSchulte/maven,karthikjaps/maven,keith-turner/maven,cstamas/maven,stephenc/maven,mcculls/maven,wangyuesong0/maven,vedmishr/demo1,likaiwalkman/maven,dsyer/maven