Provisioning: install python-virtualenv, python-dev

Signed-off-by: Pang Yan Han <pangyanhan@gmail.com>
Provisioning: install curl

Signed-off-by: Pang Yan Han <pangyanhan@gmail.com>
Provisioning: install make

Signed-off-by: Pang Yan Han <pangyanhan@gmail.com>
Provisioning: Install OpenJDK 7

Signed-off-by: Pang Yan Han <pangyanhan@gmail.com>