Python 0.5.1

Fixes

• Copies of a Variant object would cause a segfault when .samples was accessed.
  (@benjeffery, #2400, #2401)

Changes

• Tables in a table collection can be replaced using the replace_with method
  (@hyanwong, #1489 #2389)

• SVG drawing routines now return a special string object that is automatically
  rendered in a Jupyter notebook (@hyanwong, #2377)

Features

• New Site.alleles() method (@hyanwong, #2380, #2385)

• The variants(), haplotypes() and alignments() methods can now
  take a list of sample ids and a left and right position, to restrict the
  size of the output (@hyanwong, #2092, #2397)