Description of problem:
It will output error messages "ERROR - Job not available" after git push an applications of embeded jenkins

Version-Release number of selected component (if applicable):
rhc-0.87.2-1.git.0.820c48a.el6.noarch
rhc-cartridge-jenkins-1.4-0.87.2-1.git.0.0b78655.el6.noarch
rhc-cartridge-jenkins-client-1.4-0.21.1-1.git.0.ecef713.el6.noarch

How reproducible:
Always

Steps to Reproduce:
1. Create an app of php type
# rhc-create-app -t php-5.3 -a phptest -p xx
2. Create an app of jenkins type.
# rhc-create-app -t jenkins-1.4 -a jenkins -p xx
3. Embed jenkins client to phptest.
# rhc-ctl-app -a phptest -e add-jenkins-client-1.4 -p xx
4. Observe output messages and do some change in phptest's git repo, and git push to tigger jenkins build.
  
Actual results:
It will output error messages said that "ERROR - Job not available"

Expected results:
git push successfully without any error

Notes:
All types have the same problems

Additional info:
# git add.; git commit -am test; git push
[master b947469] test
 Committer: root <root>
Your name and email address were configured automatically based
on your username and hostname. Please check that they are accurate.
You can suppress this message by setting them explicitly:

    git config --global user.name "Your Name"
    git config --global user.email you

If the identity used for this commit is wrong, you can fix it with:

    git commit --amend --author='Your Name <you>'

 1 files changed, 7 insertions(+), 0 deletions(-)
Counting objects: 5, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 258 bytes, done.
Total 3 (delta 1), reused 0 (delta 0)
remote: Executing Jenkins build.
remote: 
remote: You can track your build at http://jenkinstest-bzhao78.dev.rhcloud.com/job/phptest-build
remote: 
remote: ERROR - Job not available: http://jenkinstest-bzhao78.dev.rhcloud.com/job/phptest-build
remote: !!!!!!!!
remote: Deployment Halted!
remote: If the build failed before the deploy step, your previous
remote: build is still running.  Otherwise, your application may be
remote: partially deployed or inaccessible.
remote: Fix the build and try again.
remote: !!!!!!!!
To ssh://c4da6b10981641df8618bad60865c4b3.rhcloud.com/~/git/phptest.git/
   9e51070..b947469  master -> master