fix: also need factors of contents
Merge pull request #663 from mmklee/char_series2

fix: also need factors of contents
add: iiCheckTypes, p2
tests for tr. #661
fix: save options in algemostd.lib
fix: handle zero ideals in algemodstd.lib
chg: improve chinrempoly()
chg: make minor improvements in algemodstd.lib
chg: indentation in algemodstd.lib
chg: regenerate test stats for algemodstd.lib
Merge pull request #664 from tigistdereje/algemodstd

improve algemodstd.lib
fix: bug_ringlist: ringlist with coeffs 'real'
format
Singular 4-0-1-1
Merge remote-tracking branch 'origin/spielwiese' into spielwiese.primdec.unitfix.testmode
iiCheckTypes, p3
iiExprArith*Tab
removed incorrectly placed tests
fix: len for sBuckets
fix: tr #664 (primdecSY)