These correspond to the first three blocks of table 1 in S. Sickert,
J. Esparza, S. Jaax, and J. Křetínský: Limit-Deterministic Büchi
Automata for Linear Temporal Logic. CAV'16. LNCS 9780.
For #353.
* spot/gen/formulas.cc, spot/gen/formulas.hh, bin/genltl.cc: Implement
the new families.
* tests/core/genltl.test: Test it.
* bin/man/genltl.x, NEWS: Document it.
Fixes#245.
* bin/genltl.cc: Add the option.
* bin/man/genltl.x: Add reference.
* tests/core/ltl2tgba2.test: Use these patterns.
* doc/org/genltl.org, NEWS: Document the options.
* bin/genltl.cc: Change the name and add the bibtex entry.
* bin/man/genltl.x: Replace LNCS by LNAI.
* tests/core/genltl.test: Also test the %F output.
Fixes#80.
* bin/genltl.cc: Add --kr-n2, --kr-nlogn and --kr-n.
* bin/man/genltl.x: Add the paper in the documentation.
* tests/core/genltl.test: Test them.