Change default Tulsi location to $HOME/Applications in generate_xcodeproj.sh
Change default Tulsi location to $HOME/Applications in generate_xcodeproj.sh

build_and_run.sh now install to $HOME/Applications by default. Change
the default Tulsi location in generate_xcodeproj.sh to sync with this.

bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi