c++11: replace Sgi::hash_* by Sgi::unordered_*.
* bench/scc-stats/stats.cc, bench/split-product/cutscc.cc,
iface/gspn/ssp.cc, src/bin/ltlcross.cc, src/bin/ltlfilt.cc,
src/bin/randltl.cc, src/dstarparse/nsa2tgba.cc, src/ltlast/formula.hh,
src/ltlast/nfa.hh, src/ltlvisit/contain.hh, src/ltlvisit/dotty.cc,
src/ltlvisit/mark.hh, src/ltlvisit/relabel.cc, src/ltlvisit/relabel.hh,
src/ltlvisit/simplify.cc, src/ltlvisit/snf.hh, src/misc/hash.hh,
src/misc/mspool.hh, src/priv/acccompl.hh, src/priv/accconv.hh,
src/saba/explicitstateconjunction.hh, src/saba/sabastate.hh,
src/sabaalgos/sabareachiter.hh, src/sanity/style.test,
src/ta/taexplicit.cc, src/ta/taexplicit.hh, src/taalgos/emptinessta.cc,
src/taalgos/minimize.cc, src/taalgos/reachiter.hh, src/tgba/state.hh,
src/tgba/taatgba.hh, src/tgba/tgbabddconcretefactory.hh,
src/tgba/tgbaexplicit.hh, src/tgba/tgbakvcomplement.cc,
src/tgba/tgbasafracomplement.cc, src/tgba/tgbatba.cc,
src/tgba/tgbatba.hh, src/tgbaalgos/cutscc.cc, src/tgbaalgos/cycles.hh,
src/tgbaalgos/degen.cc, src/tgbaalgos/dtbasat.cc,
src/tgbaalgos/dtgbasat.cc, src/tgbaalgos/eltl2tgba_lacim.cc,
src/tgbaalgos/emptiness.cc, src/tgbaalgos/gtec/explscc.hh,
src/tgbaalgos/gtec/nsheap.hh, src/tgbaalgos/gv04.cc,
src/tgbaalgos/ltl2tgba_fm.cc, src/tgbaalgos/magic.cc,
src/tgbaalgos/minimize.cc, src/tgbaalgos/ndfs_result.hxx,
src/tgbaalgos/powerset.hh, src/tgbaalgos/randomgraph.cc,
src/tgbaalgos/reachiter.hh, src/tgbaalgos/replayrun.cc,
src/tgbaalgos/safety.cc, src/tgbaalgos/scc.hh, src/tgbaalgos/se05.cc,
src/tgbaalgos/simulation.cc, src/tgbaalgos/tau03.cc,
src/tgbaalgos/tau03opt.cc: Adjust code.
* src/sanity/style.test: Remove check.
34e91b7656