Rerun Travis-CI test.
Rerun Travis-CI test.

Can't reproduce the error that occurs in test-data.frame-like.R

vlulla/data.table,jangorecki/data.table,jangorecki/data.table,vlulla/data.table,Rdatatable/data.table,jangorecki/data.table,vlulla/data.table,Rdatatable/data.table,Rdatatable/data.table,Rdatatable/data.table,jangorecki/data.table,vlulla/data.table