trac 11215 a pairing between cusp forms for Gamma0(N) and elements of Gamma0(N)
trac #11215 minor changes according to review
Merge branch 'u/chapoton/11215' of ssh://trac.sagemath.org:22/sage into 11215
trac #11215 minor pyflakes cleanup (cosmetic)
Trac 11215: precision and other improvements
Implemented k-closures for matroids.
Trac 11215: raise ValueError if the weight is not 2, don't warn about
precision for newforms attached to elliptic curves
Trac 11215: add doctests to test input checking
Trac 11215: documentation and examples to explain the relation to
modular symbols of elliptic curves
Trac 11215: small improvements related to numterms
Merge branch 'develop' into public/matroids/k_closure-16319
Added a matroid k-closed check.
trac #16067: changes generated by "2to3 -w -f filter src/sage"

- adapt to the changed semantic of filter() function in Python 3
- mostly replace filter() by list comprehension
- a few times wrap filter() by a call to list()
trac #16067: fix an error generated by "2to3"

"2to3" was confused by an overwritten standard library function filter()
in src/sage/graphs/generic_graph.py
trac #16067: tidying up the generated patch

- often it was possible to replace list comprehension [x for x in X if f(c)]
  by a generator expression  (x for x in X if f(c))
- sometimes a bit more complicated fixup
trac #16370: OA(k,n) strongly regular graphs
implementation of a bijection from Dyck words to triangulations
Merge branch 'develop' into u/wluebbe/ticket/16067

Conflicts:
	src/sage/combinat/finite_state_machine.py
	src/sage/combinat/k_tableau.py
Merge branch 'u/chapoton/16394' of ssh://trac.sagemath.org:22/sage into 16394
trac #16394 add a random_element for Dyck words