add LLL_Flint feature: if called system(LLL_Flint, l, 1) will return
                       as a second entry also the transformation matrix
                       if called system(LLL_Flint, l, 0) will return
                       just the matrix - as system(LLL_Flint, l)
commented: FLINT_VER_2_4_5
fix: LLL_Flint
fix: more memory stuff
doc: rank(M,1)
Fix schreyer.lib: documentation & exports & cleanup & testing
residue class and polynimials
additional tests: factmodd
kstd1/kutil: clean r->OrdSgn: rHasGlobalOrdering
warnings: fixed finvar.lib, rModifyRing, wrong assume in gnumpc.cc
warnings: fixed finvar.lib, algebra.lib
warnings: fixed Short/scharz*tst
Documentation for schreyer.lib
fix: includes for SINGULAR_4_1
fix: memory leak: assign list-elem to newstruct
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Merge branch 'spielwiese' of github.com:Singular/Sources into spielwiese
fix simplifyIdeal (char 2)
fix: tr. #674
additional test for lduSolve
revisiting kstd1::red*: cleanup