Changes:
- fix inherited overloaded methods in Python bindings
- decompose topological sort of clusters in incremental scheduler
- improved isl_pw_aff_list_{min,max}
- add some convenience functions
- more exports to (templated C++) bindings
- slightly improved conversion from binary relation to function
https://repo.or.cz/isl.git/shortlog/?qt=range&q=isl-0.25..isl-0.26
Signed-off-by: Chris Packham <judge.packham@gmail.com>
