New in the Python interface

• Added support for weighted diameter
• get_eid() considers edge directions by default from now on
• Fixed a memory leak in the attribute handler
• NaN and inf are treated correctly now

Bugs corrected in the C layer

• Betweenness and edge betweenness functions work for graphs with many shortest paths now (up to the limit of long long int)
• The configure script fails if there is no C compiler available
• Fixed a bug in igraph_community_spinglass, when csize was a NULL pointer, but membership was not
• Fixed a bug in igraph_bipartite_projection that caused occasional crashes on some systems