fix zmenu link
remove r param from hrefs when species is not primary species
Fix the priorities in colouring the clades
fix bug with missing exon line when the entire region is inside the exon

Added support for colour gradient BED files (useScore=2)

Removed 'range' parameter as our format was wrong
reversed change that broke wiggle display for compara and funcgen tracks - bp1

Added support for BED bar (histogram) and point (wiggle plot) graphs
add alt alleles to legend
fixes for vega

Added support for userdata cigar features with no attached slice

Fix for URL data
do_not_flip parameter is no longer required when drawing cigar features
fix image size bug when a glyphset has no data for a particular chromosome
set v_offset correctly now the VDrawableContainer bug is fixed
can't use r since if that's invalid, ie because we're on the MHC, then core_objects fails

Fix to rendering of cigar lines when itemRgb set to 'On'

Added in sorting by 'priority' property (where set on userdata)