Gui 1213 Instance Types Update Page

https://eucalyptus.atlassian.net/browse/GUI-1213
This chunk of code was taken from an example code site, and when looked up the usage of $timeout, it mentions that $timeout() ensures that the function inside $timeout to be called after the DOM has been completely manipulated by Angular. Thus, in this case, it ensure the emit event call is made after the $last row has been fully rendered. Removed the unneed the time value 1, since the default value 0 will do the same job.