Fix database installation
Fix database installation

* set correct database URL
* install required Python MySQL package
* use correct command to restart MySQL service on Ubuntu

Change-Id: Ia99549553a5ff47414a350724afc45bd35da69c9

hcarlsso/CloudVideo,stackforge/faafo,hcarlsso/CloudVideo,MartinPaulo/son_of_faafo,MartinPaulo/faafo,MartinPaulo/son_of_faafo,stackforge/faafo,MartinPaulo/faafo,MartinPaulo/faafo,MartinPaulo/son_of_faafo,hcarlsso/CloudVideo,stackforge/faafo