Merge pull request #75 from dalers/master

updated scc files and demo_load script
added Issues in main menu
added test for db connection ("Web App Dev with Yii and PHP", 2nd ed, Winesett, p. 51)
refactored "om_order..." (various capitalizations) to "order..."
added one order to demo data sql file
Corrected title. TODO refactor "stock_serial" to "material"