Install SQL-Ledger (Dutch) on Debian Wheezy

#!/bin/bash
#
createuser --no-superuser --no-createdb --no-createrole mypguser
createdb -O mypguser mypgdatabase
apt-get -y install ssh acpid apache2 postgresql libdbi-perl libdbd-pg-perl git-core gitweb postfix mailutils texlive texlive-lang-dutch cups hplip hpijs cups-driver-gutenprint
cupsctl --remote-admin
cupsctl --share-printers --remote-any
cd /usr/local
git clone git://github.com/Tekki/sql-ledger.git
cd /usr/local/sql-ledger
chown -hR www-data:www-data users templates css doc
cd /etc/apache2/sites-available/
wget -c https://raw.github.com/Tekki/sql-ledger/full/doc/sql-ledger.httpd.conf
mv sql-ledger.httpd.conf sql-ledger
cd /etc/apache2/sites-enabled
ln -s /etc/apache2/sites-available/sql-ledger 001-sql-ledger
/etc/init.d/apache2 reload
#
# CONTINUE INSTALLATION WITH WEBBROWSER !!!
#
# CREATE DATASET:
# ---------------
# Load your web browser and connect to
# http://localhost/sql-ledger/admin.pl
#
# There is no password so just hit the Enter key or click
# on "Continue".
#
# Check the appropriate database driver if there is more
# than one installed.
#
# Click on "Add Dataset"
#
# Host [database host]               Port [      ]
# User [database user]           Password [database password]
# Connect to [template1 or your_database]
#
# Note: template1 or your_database is required to make a connection
# to access the database, nothing will be created yet.
#
# Click on "Continue"
#
# Dataset [your_dataset]
# Company [name of the company]
# Templates [template set to create]
# Multibyte Encoding [                 ]
#
# Select a chart of accounts and click on "Continue".
#
# Your tables will now be created and the chart of accounts
# will be loaded.
#
#
# CREATE DATASET WITHOUT CREATE PRIVILEGES:
# -----------------------------------------
# If you cannot create a database, most ISPs won't let you
# directly access the database, you can still create the
# neccessary files to run SQL-Ledger.
#
# 1) use your database manager (pgadmin, etc) and log in with the
# database user your ISP has assigned to you
# 2) create a blank database
# 3) go to the previous step CREATE DATASET and enter
# the name of the database in the field "Dataset".
#
#
# LOAD THE PROGRAM:
# ----------------------------
# Load your web browser and connect to
# http://localhost/sql-ledger/login.pl
#
#
# SET UP USERS:
# -------------
# Log into SQL-Ledger as user 'admin'
#
# If you have more than one dataset you can either
# choose from a list of datasets or log in directly
# to the dataset by appending @dataset to admin
#
# Go HR -> Add Employee
#
# In the field 'login' assign a login for the employee.
#
# Note: The same interface is used to remove a login,
# simply remove the login and the employee will no
# longer be able to log in.
#