avoid installing old packages, and also manually remove them if installed; does this solve the abind problem?!
special treatment for abind and xtable, sigh
put special packages in the front
pick some packages for the `separate` field
update branch Thu Oct  2 02:29:02 CDT 2014
update branch knitr Thu Oct  2 13:02:26 CDT 2014
update branch knitr Thu Oct  2 14:49:45 CDT 2014
update branch knitr Thu Oct  2 19:41:50 CDT 2014
update branch knitr Thu Oct  2 23:52:25 CDT 2014