Importing koimoi-functions.php

git-svn-id: https://plugins.svn.wordpress.org/koimoi-box-office/trunk@778719 b8457f37-d9ea-0310-8a92-e5e31aec5664
Removing "koimoi-admin.php"

git-svn-id: https://plugins.svn.wordpress.org/koimoi-box-office/trunk@778721 b8457f37-d9ea-0310-8a92-e5e31aec5664