Maintenance release

Fix placement of image assets.

CRAN release

• Move "let()" to wrapr https://github.com/WinVector/wrapr .
• add replyr_coalesce.
• Add many work-arounds for different remote data stores.
• Make minimal Spark version: 2.0.0.
• replyr_bind_rows reorder and intersect column names.

More data.frame interfaces

0.2.1

prepare for CRAN submission

CRAN 0.2.0 release

Bug fixes for replyr_summary, replyr_colClasses, replyr_testCols.
Notation changes for let.
Introduction of letp.
Much more documentation.

first CRAN release

first CRAN release