Screen log

-- A simple logging API --

function info(msg)
 term.write('[ ')
 term.setTextColor(colors.green)
 term.write('OK')
 term.setTextColor(colors.white)
 term.write(' ] '..msg)
 print(' ')
 sleep(0.01)
end

function warn(msg)
 term.write('[ ')
 term.setTextColor(colors.orange)
 term.write('WARN')
 term.setTextColor(colors.white)
 term.write(' ] '..msg)
 print(' ')
 sleep(0.01)
end

function err(msg)
 term.write('[ ')
 term.setTextColor(colors.red)
 term.write('ERROR')
 term.setTextColor(colors.white)
 term.write(' ] '..msg)
 print(' ')
 sleep(0.01)
end