Doxygen descriptions for directories
fix: error handling in ssi links: return NONE
chg: simplified grammar.y
introduce "->" (ARROW)
tests changed because of "->"
fix: slStatusSsiL: use select after each white space
mv: fac_ezgcd.cc -> cfEzgcd.cc
chg: moved hasFirstAlgVar from cfGcdAlgExt to cf_ops
chg: moved EZGCD_P from cf_gcd_smallp to cfEzgcd
chg: moved univariate gcd / extgcd from cf_gcd.cc to cfUnivarGcd
chg: moved coprimality test and change of representation mod n from cf_gcd to cfGcdUtil
chg: moved subresultant gcd from cf_gcd to cfSubResGcd
chg: moved chinrem_gcd from cf_gcd to cf_gcd_smallp
chg: changes due to moving functions
chg: docu for new files
chg: renamed gcd_poly_* to subResGCD_
chg: renamed modular GCD variants in cf_gcd_smallp to modGCDFp, modGCDFq, modGCDGF, modGCDZ
chg: renamed cf_gcd_smallp.* to cfModGcd.*
chg: moved randomIrredpoly from cfModGcd to cf_irred
fix: missing cfEzgcd.h
fix: compilation without NTL