R: import methods package, instead of depending on it.
Fix git ignore file, was messed up in a merge.
R: refining Matrix and methods dependencies.

Trying to avoid check errors....
R: don't run scg examples when checking package.
R: fix attribute bracketing bug (#533).

Apparently, returning an object from .Call()
does not make a copy of it in R.
R: updated NEWS file.
R: work out dependencies so that loading is quick.

The key is not to import anything from Matrix, unless
it is really needed.
Python: fixed Graph.SBM test case
Merge branch 'develop' of github.com:igraph/igraph into develop
R: reworked dependencies again, Import Matrix and use ::.
R: fix authority score test case.

Matrix must be loaded "by hand" now.
Merge branch 'develop' of github.com:igraph/igraph into develop
R: use Matrix:: on tril and triu.

Otherwise they are not visible.
R: fixed biconnected.components() test case.

Apparently, it is not trivial to sort a list of
vectors platform independently in R.
R: fix an example with Matrix.

Need to load explicitly now, because we import it only,
and we don't load it in the code.
barabasi_game uninitialized variable fix.

Crashed R sometimes. The problem was that for empty
vectors igraph_vector_min() return an uninitialized value,
and this was used to check an argument.
Nightly: show all versions.
Nightly: added R OS X binary package type.
Fixed invalid write in graphlets, causing some crashes.
R: make package compile on Windows, add plfit include directory.