fixed das bug
added tweaks for alt background colour
tweaks to allow alternating clone colours to work
merging head to branch
fix r,g,b colour handling
SUpport for r,g,b
rgb fix for pdfs
fixed das drawing bug which over writes -ve strand features with non-stranded features
Merging DAS fixes from HEAD
New consensus cigar lines
Handling of new Constrained Elements
Undo changes in branch-52