Add blue text when upgrade module

[onlineapps-cloud]

hi, when i install module, i have blue text about installing module, but when i want to upgrade existing module, i don't get this blue text

and i don't understand, when i click, install process started or not, if i click twice, i get popup where say that i need to wait when current operation will be finished

and upgrade process starting again, so you need to add option to not permit to click again on this button, like on install module step. you missed this feature on upgrade module step.