v0.4

• Interface changes
  • glimpse() obtains default width from tibble.width option (#35, #56).
  • Don't export dim_desc() (#50, #55).
  • New has_rownames() and remove_rownames() (#44).
• Minor modifications
  • frame_data() returns 0-row but n-col data frame if no data.
  • [[.tbl_df() now falls back to regular subsetting when used with anything other than a single string (#29).
  • When used in list-columns, S4 objects only print the class name rather than the full class hierarchy (#33).
  • Add test that [.tbl_df() does not change class (#41, @jennybc).
  • Improve [.tbl_df() error message.
• Documentation
  • Improve documentation and vignette.
  • Update README, with edits (#52, @bhive01) and enhancements (#54, @jennybc).
• Code quality
  • Full test coverage (#24, #53).
  • Renamed obj_type() to obj_sum(), improvements, better integration with type_sum().
  • Cleanup for column_to_rownames() and rownames_to_columns() (#45).
  • Cleanup for repair_names() (#43). Whitespace are not touched by this function (#47).
  • Cleanup for add_row() (#46).
  • Regression tests load known output from file (#49).
  • Internal cleanup.
  • Don't test R-devel on AppVeyor because of missing directory on CRAN.