Include postgresql in dbcreate for process_user
Include postgresql in import for various variables

Also, change user and extract_dir defaults so they're
calculated after the include evaluates.
Correct version values for debian based distros

Debian should be correct and I think Ubuntu is
as well. Not as sure about Mint since I'm not
familiar with their repo system.
Merge pull request #13 from cdombroski/master

Correct postgresql version for Debian based distros
Merge pull request #15 from cdombroski/issue14

Include postgresql in defined types before using class variables
Delint my previous edit
Merge pull request #16 from cdombroski/master

Delinted pull request 13
More lints
Merge remote-tracking branch 'upstream/master'