Description of problem:
Fail to embed postgresql to existing app after migrated.

Version-Release number of selected component (if applicable):
1.2/2013-06-07.2

How reproducible:
Always

Steps to Reproduce:
1. Setup ose-1.1.3 env
2. Create an app
3. Following http://etherpad.corp.redhat.com/OSE-1-2-upgrade-notes to do upgrade testing
4. After upgrade, try to embed postgresql to this app.

Actual results:
$ rhc cartridge add postgresql -a phptest -p redhat -l jialiu
Using postgresql-8.4 (PostgreSQL Database 8.4) for 'postgresql'
Adding postgresql-8.4 to application 'phptest' ... /var/lib/openshift/29b340296966408694fb173655b11657/postgresql/bin/install: line 39: HOME: unbound variable

Mcollective log:
I, [2013-06-08T23:14:59.340571 #3033]  INFO -- : openshift.rb:51:in `cartridge_do_action' cartridge_do_action call / action: cartridge_do, agent=openshift, data={:cartridge=>"postgresql-8.4",
 :action=>"configure",
 :args=>
  {"--with-app-uuid"=>"1d7896f40b0943d4b59a2e6dcf0bfa96",
   "--with-app-name"=>"perltest",
   "--with-container-uuid"=>"1d7896f40b0943d4b59a2e6dcf0bfa96",
   "--with-container-name"=>"perltest",
   "--with-namespace"=>"jialiu",
   "--with-uid"=>1002,
   "--with-request-id"=>"b2e935f4a67e8d6331d9ef7e85f9234c",
   "--cart-name"=>"postgresql-8.4",
   "--component-name"=>"postgresql-8.4",
   "--with-software-version"=>"8.4",
   "--cartridge-vendor"=>"redhat"},
 :process_results=>true}

I, [2013-06-08T23:14:59.342112 #3033]  INFO -- : openshift.rb:52:in `cartridge_do_action' cartridge_do_action validation = postgresql-8.4 configure {"--with-app-uuid"=>"1d7896f40b0943d4b59a2e6dcf0bfa96", "--with-app-name"=>"perltest", "--with-container-uuid"=>"1d7896f40b0943d4b59a2e6dcf0bfa96", "--with-container-name"=>"perltest", "--with-namespace"=>"jialiu", "--with-uid"=>1002, "--with-request-id"=>"b2e935f4a67e8d6331d9ef7e85f9234c", "--cart-name"=>"postgresql-8.4", "--component-name"=>"postgresql-8.4", "--with-software-version"=>"8.4", "--cartridge-vendor"=>"redhat"}
I, [2013-06-08T23:14:59.342454 #3033]  INFO -- : openshift.rb:91:in `execute_action' Executing action [configure] using method oo_configure with args [{"--with-app-uuid"=>"1d7896f40b0943d4b59a2e6dcf0bfa96", "--with-app-name"=>"perltest", "--with-container-uuid"=>"1d7896f40b0943d4b59a2e6dcf0bfa96", "--with-container-name"=>"perltest", "--with-namespace"=>"jialiu", "--with-uid"=>1002, "--with-request-id"=>"b2e935f4a67e8d6331d9ef7e85f9234c", "--cart-name"=>"postgresql-8.4", "--component-name"=>"postgresql-8.4", "--with-software-version"=>"8.4", "--cartridge-vendor"=>"redhat"}]
I, [2013-06-08T23:15:08.400069 #3033]  INFO -- : openshift.rb:100:in `execute_action' Finished executing action [configure] (157)
I, [2013-06-08T23:15:08.400547 #3033]  INFO -- : openshift.rb:73:in `cartridge_do_action' cartridge_do_action failed (157)
------
Shell command '/sbin/runuser -m -s /bin/sh 1d7896f40b0943d4b59a2e6dcf0bfa96 -c "exec /usr/bin/runcon 'unconfined_u:system_r:openshift_t:s0:c0,c1002' /bin/sh -c \"/var/lib/openshift/1d7896f40b0943d4b59a2e6dcf0bfa96/postgresql/bin/install --version 8.4\""' returned an error. rc=1
CLIENT_MESSAGE: Installing postgres
CLIENT_MESSAGE: Generating username and password
CLIENT_ERROR: /var/lib/openshift/1d7896f40b0943d4b59a2e6dcf0bfa96/postgresql/bin/install: line 39: HOME: unbound variable
------)


Expected results:
Embed postgresql to existing app should pass.

Additional info:
Embed mysql successfully to the same app.