Admin home page preference still not respected

If the setting for defaulthomepage is set to Dashboard then the "Site home" link in the primary navigation (boost theme) will point to the dashboard.
Currently the url is set to "/" but it needs to be "/?redirect=0"

Note: There is a change that was proposed during the PR phase, i.e:

1. Change the Dashboard node key to 'myhome'.
2. Change the Site home node key to 'home'.

The reason for this change is it looked confusing with Dashboard node key pointing to 'home'. Hence the closest thing that we came up with was using 'myhome'.