Instrumented code for counting:
* added counters to addition in cohomology and ChainWrapper
* rips-pairwise-cohomology counts the maximum elements stored in the cycles
* added alphashapes3d-cohomology
* moved progress_display from DynamicPersistence to StaticPersistence
Write an audit for the data structure.
-DBOOST_UBLAS_TYPE_CHECK=0 is necessary since otherwise Boost's uBLAS gives a compile-time error
when it doesn't find sqrt for polynomials. It doesn't actually need it (e.g., for LU-decomposition,
but it looks for it during type check). (File a bug report with Boost?)