branches needed after all ...

Pharo 1.1, 1.2 and 1.3 require a different version of Seaside-Slime 
(Seaside-Slime-jok.80 instead of Seaside-Slime-lr.82) because a 
class was renamed for Pharo 1.4 ... not worth creating a separate 
branch for those platforms (at the moment) ... a better solution would
be to create a branch for the Seaside-Slime package 
(Seaside-Slime.pharo1x?) then we don't have to branch the git 
repository...for now disable pharo1.1-3 builds