Support for MathicGB. Early interface with no options.
Build system support for MathicGB.
Added support for option(prot) to MathicGB interface.
The MathicGB interface now picks up the monomail order from the ambient ring of the ideal that it is computing a Groebner basis from. However,t his is done in a way that makes MathicGB slow, so I need to improve this. But it works.
Make use of new MathicGB support for both left and right variants of lex and revlex.
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