fix: handling of SW_RATIONAL
chg: include FLINTconvert.h to use FLINT /NTL for univariate ops
add: new test for char_series
added new test results
chg: new version of tropical.lib by Thomas
Merge pull request #545 from YueRen/spielwiese

chg: new version of tropical.lib by Thomas
Merge pull request #544 from mmklee/algfuncfact2

Algfuncfact2
Minor BS cleanup
Better approach to configuring multiple packages: omalloc/resources/factory

add: precious configure variables {OMALLOC/RESOURCES/FACTORY}_{LIBS/INCLUDES}
fix: also related minor fixes

NOTE: main changes are in m4/options.m4 and factory/configure.ac (which was the motivator for the whole thing)

NOTE2: the cleanup of "-I${top_srcdir}/.." and "-I${top_srcdir}/../factory/include" (and similar for builddir) in favor of {OMALLOC/RESOURCES/FACTORY}_INCLUDES
Minor BS cleanup: no need in -I${srcdir} and -I${builddir} in CPPFLAGS
move s_buff.{cc,h} and si_signals.h to libpolys/reporter
chg: moved reading/writing numbers via ssi to coeffs (p.1)
Merge branch 'spielwiese' of github.com:Singular/Sources into spielwiese

Conflicts:
	Singular/iparith.cc