bldmefirst - added new variables (sf.spec.bldmefirst.gt.variant and sf.spec.bldmefirst.gt.hrh) to platform projects to remove hardcoded locations from platform build.xml
symbian^3 - changed split build sources.csv and sources_fcl.csv to point at mercurial_master_stage. Note that FCLs don't exist on stage, so sources_FCL won't work, and I've not done this for the combined model!!!