Install Oracle 8 instead of OpenJDK using PPA

replace_openjdk_with_java8.sh

# Reference: http://wiki.jetbrains.net/intellij/Installing_and_running_PHPStorm_on_Ubuntu#Installing_Oracle_.28Sun.29_JDK
#
# Before you install it, remove OpenJDK, if you have it installed:
sudo apt-get purge openjdk*

# To install Java 8/7/6, do this:
# In order not to get issues with the add-apt-repository command, install the following package:
sudo apt-get install software-properties-common

# Add the PPA:
sudo add-apt-repository ppa:webupd8team/java

# Update the repo index:
sudo apt-get update

# Install Java 8:
sudo apt-get install oracle-java8-installer