[Pharo-project] Load OB in Pharo 1.2

Hi Lukas. Trying to evaluate: (ConfigurationOfOmniBrowser project version: '1.1-baseline') load: 'Core RB' I am trying to load OB and RB in Pharo 1.2 I found still refernces to Preferences and some other problems. I attach a changeset to fix the ones I found. If you want to check them lukas would be nice :) Thanks Mariano