Fix the 'puppet lookup' command to unescape special characters.
Test Plan:
PASS: Use Ruby CLI to test different password possibilites.
PASS: Build packages.
PASS: Build iso image.
PASS: Fresh install Duplex using admin_password starting with
special characters.
PASS: Fresh install Duplex using admin_passwod not starting
special characters
PASS: Fresh install Duplex using default admin_password
Closes-Bug: 2020148
Change-Id: Ifde68b457a12e808a9878b0cd472c21cea2a1c04
Signed-off-by: Guilherme Schons <guilherme.dossantosschons@windriver.com>