transition_composite.c: make luma and luma_invert properties mutable
transition_composite.c: make luma and luma_invert properties mutable

git-svn-id: 5ee9a2a761147e4d9fa32565ef7949b666b061d3@1378 d19143bc-622f-0410-bfdd-b5b2a6649095

ttill/MLT,ttill/MLT-roto,anba8005/mlt,gmarco/mlt-orig,siddharudh/mlt,zzhhui/mlt,rayl/MLT,xzhavilla/mlt,wideioltd/mlt,anba8005/mlt,siddharudh/mlt,wideioltd/mlt,wideioltd/mlt,mltframework/melted,gmarco/mlt-orig,mltframework/melted,xzhavilla/mlt,siddharudh/mlt,ttill/MLT,ttill/MLT-roto,j-b-m/mlt,gmarco/mlt-orig,gmarco/mlt-orig,mltframework/mlt,mltframework/mlt,siddharudh/mlt,j-b-m/mlt,anba8005/mlt,xzhavilla/mlt,gmarco/mlt-orig,anba8005/melted,gmarco/mlt-orig,ttill/MLT,rayl/MLT,gmarco/mlt-orig,zzhhui/mlt,ttill/MLT-roto-tracking,ttill/MLT-roto,mltframework/mlt,zzhhui/mlt,anba8005/mlt,zzhhui/melted,ttill/MLT-roto-tracking,xzhavilla/mlt,j-b-m/mlt,mltframework/melted,mltframework/melted,xzhavilla/mlt,ttill/MLT-roto-tracking,xzhavilla/mlt,ttill/MLT-roto,mltframework/melted,siddharudh/mlt,rayl/MLT,mltframework/melted,anba8005/melted,ttill/MLT,ttill/MLT-roto-tracking,rayl/MLT,ttill/MLT,zzhhui/melted,mltframework/mlt,anba8005/mlt,rayl/MLT,gmarco/mlt-orig,j-b-m/mlt,ttill/MLT-roto-tracking,siddharudh/mlt,mltframework/mlt,xzhavilla/mlt,wideioltd/mlt,zzhhui/mlt,zzhhui/melted,ttill/MLT-roto,ttill/MLT-roto,zzhhui/mlt,zzhhui/melted,rayl/MLT,ttill/MLT-roto,mltframework/mlt,ttill/MLT,j-b-m/mlt,rayl/MLT,zzhhui/mlt,ttill/MLT-roto-tracking,ttill/MLT-roto,zzhhui/melted,anba8005/mlt,j-b-m/mlt,ttill/MLT,mltframework/mlt,j-b-m/mlt,gmarco/mlt-orig,zzhhui/mlt,wideioltd/mlt,j-b-m/mlt,siddharudh/mlt,j-b-m/mlt,ttill/MLT-roto-tracking,anba8005/mlt,mltframework/mlt,j-b-m/mlt,anba8005/mlt,mltframework/mlt,wideioltd/mlt,wideioltd/mlt,ttill/MLT-roto-tracking,ttill/MLT-roto-tracking,zzhhui/melted,zzhhui/mlt,xzhavilla/mlt,mltframework/mlt,siddharudh/mlt,wideioltd/mlt,ttill/MLT,anba8005/melted,xzhavilla/mlt,ttill/MLT-roto,siddharudh/mlt,anba8005/melted,anba8005/melted,ttill/MLT,anba8005/melted,anba8005/mlt,rayl/MLT,zzhhui/mlt,wideioltd/mlt