initial commit
ENH: Added chkfinite flag to scipy.linalg
TESTS: Added tests for the chkfinite flag
Name change: chkfinite now check_finite
Merge commit 'upstream/master' into sparse-graph
move scipy.sparse.graph to scipy.sparse.csgraph in order to follow previous convention
rename graph->dist_matrix
clean up FibonacciNode states
add ability to return predecessor matrix
add breadth-first search
add depth-first search
add depth-first and breadth-first tree functions
add minimum spanning tree routine
better code documentation
add unweighted shortest path
add validation tools
add graph traversal tests
cleanup, tests, doc
move csgraph code to private submodules
update documentation