adding glance and nova to list of randomly generated database passwords that need generating.
Adding some "constants" that people can choose to change should they desire, but dont need changing.
BUGFIX - incorrect filename fixed in installation script
BUGFIX - replaced static "controller" with the CONTROLLER_HOSTNAME variable in swifts "general" script
adding debconf selections to automate package installation for glance.
 - wrapping code that should now be redundant in if false statements
BUGFIX - repalacing %SERVICE_TENANT_NAME% with $SERVICE_TENANT_NAME
Removing the notice that pauses installation for the user as we now use debconf to automate the package installation.
Using variables for constants.
BUGFIX - replacing "controller" constant with variable
BUGFIX - you cannot sudo echo to file, need to use tee (perhaps this is diff with scripts?)
Replacing nova contant with the variable which is set from the config
wrapping the verification step in if false so that it can be easily run when debugging, but unnecessary during installations others perform.