Merge pull request #79 from arkxu/3.0

no need to update gem itself after installation, and one cherri-pick
Stop purging OpenJDK 7 dependencies
Merge pull request #80 from closson/3.0

Stop purging OpenJDK 7 dependencies
update services ref
Merge pull request #81 from michaelnsj/3.0

Merged.
update services ref
Merge pull request #93 from michaelnsj/3.0

Merged.
Merge pull request #95 from arkxu/3.0

don't rely on postgres
push create_admin to 3.0
Merge pull request #101 from michaelnsj/3.0

Merged.
BUG-INTALIO-000992 admin app depends on intalio app for license info
Merge pull request #103 from michaelnsj/3.0

Merged.
missing create_admin bin file for 3.0 branch