Move ecj dependency to lafo and update to version 4.5.2
Move ecj dependency to lafo and update to version 4.5.2

lxp/sulong,PrinzKatharina/sulong,PrinzKatharina/sulong,lxp/sulong,lxp/sulong,PrinzKatharina/sulong,lxp/sulong,PrinzKatharina/sulong