R: printing graphs now converts the "name" graph attribute to character.
R: convenience functions to query and set all attributes at once.
R: runtest.sh prints out the working directory, to allow saving the test output.
R: hanle attributes in graph.disjoint.union.
Update union and union_many to return mappings for the edges.
Fixed error handling in _union_many.
R: rewrite graph.union() to handle attributes properly.
Refactor igraph_union.
Refactor igraph_intersection, it can now report edge mappings.
Fixed an igraph_intersection error message.
Temporary.
Fix an entry in the functions.def file, TABs are not allowed, parser is stupid.
Add a replacement stpcpy function if it is not available.
R: fix a typo in the graph.diversity manual page.
R runtest.sh echoes temporary directory name.
R: fixed igraph indexing, when attr is given. Fixes bug #1073705.
Fixed a bug when calculating the largest cliques of a directed graph. Fixed bug #1073800.
R: added k.regular.game manual page.
R: small documentation fixes and udpates.
R: suggest the XML, jpeg and png packages, they	are needed in an example.