specify namespace for min and max
fix string casting bug in bad character exception message
Merge branch 'development'
Merge branch 'development'
Merge branch 'development'
Merge branch 'development'

pull lifotver fix from dev
Merge branch 'development'
Merge branch 'development'
There was a terrible bug introduced into the column iterator a couple months ago.  The relevant changes are undone, and hopefully everything works again.
fix typo in assert
Merge remote-tracking branch 'origin/development'
Merge branch 'development'
add missing include for picky ocmpilers
Merge remote-tracking branch 'origin/development'
remove maxrefgap from hal2maf to speed up benchmark
enable --inMemory option while *creating* genomes too
Merge branch 'master' into development
add --inMEmory option to python lod scripts
Merge branch 'development' into chains
split off new interface SlicedSegment from SegmentIterator.  Consolidated Segment, SlicedSegment, and SegmentIterator implementations into new abstract implementation classes.  this addresses most , tho not all , issues of code duplicaiton between top and bottom iterators
add mappedsegment interface