chg: start preparing doc for 3-1-7, add schubert.lib, fix schubert.lib
fix: add rp in ordering description
chg: deleted unneccessary swap
chg: moved some code from .h to .cc
chg: absBiFactorizeMain now also returns other factors
chg: added factorizationWRTDifferentSecondVars to header
chg: removed trailing spaces
chg: added decompress for absolute factors
chg: renamed facAbsFact.* to facAbsBiFact.*
chg: changes due to renaming
fix: compiler warnings about empty if
added: new absolute factorization for multivariate polys
chg: changes due to new abs factorization
chg: changes to build system and Singular interface due to new routines
chg: added more tests from absfact.lib to absbifact.tst
fix: includes and some typos
chg: fewer bivariate factorizations and removed  unnecessary test
chg: formatting and removed unnecessary function
chg: rmemoved trailing spaces
fix: typo
fix: possible seg fault due to invalid eval point
fix: possible seg fault due to wrong log deriv