Make sure the tmp directory is writable by others, especially postgres
Fixed the getJONPlugin method
Tidying up error text if postgresl version not chosen
Fixing JON variable consolidation and writing to disk - the
resetVariable method loads the variables as well

Moved the JON_DEMO_INSTALLED till after completion to specify that if
it says yes, it's succeeded. (maybe add - in progress option)
Allowed stop/delete demo options to run even if JON_DEMO_INSTALLED != y
just for broken installs
Fixed embedded timers
Consolidated a variable
Cleaning up unused variable params
Allowing for basic stats for time taken to install AND delete