some merge
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
implemented lib functions for lists
Merge pull request #43 from emilyhsia/master

command line arguments hack
Merge remote-tracking branch 'upstream/master'
Merge pull request #44 from chrso/master

list.replace/remove/insert/size
fix bug in command line hack