v0.22.1

DataFrames v0.22.1

Diff since v0.22.0

Closed issues:

• eltype width taken into accounet in display even if it is not shown (#2540)
• Final ellipsis appears on next row (#2544)
• clarify the interface for crossjoin when makeunique=true (#2545)
• Two small typos in docs (#2550)

Merged pull requests:

• Fix size of float columns without eltypes (#2542) (@ronisbr)
• Spaces after commas (#2546) (@kescobo)
• Optional args style (#2547) (@kescobo)
• Zero after decimal (#2548) (@kescobo)
• issue #2550 fix two small typos in docs (#2551) (@roualdes)
• Switch from travis to GitHub Actions for CI testing (#2552) (@quinnj)
• error when using one dimension for indexing (#2553) (@bkamins)
• Add link to CI status badge (#2555) (@nalimilan)