v0.2.0

DataFrameIntervals v0.2.0

Diff since v0.1.0

Merged pull requests:

• Fix indexing style (#11) (@haberdashPI)
• Open Source License (#14) (@haberdashPI)
• Add info about related packages (#16) (@haberdashPI)
• Handle empty dataframes (#19) (@haberdashPI)
• Mention AlignedSpans workaround in README (#20) (@haberdashPI)
• Add keepleft and keepright keywords (#23) (@haberdashPI)
• Bump version for release (#25) (@ericphanson)

Closed issues:

• Broken doc links (#15)
• Handle the case where either the left or right dataframe has no rows (#18)