CRAN release 0.14.0

• addEventLines() and addLegend() now draw on multiple panels when on is a vector. Thanks to Ethan Smith for the report. (#420)

• Replace SET_TYPEOF() in merge.c because it will error when it tries to convert a REAL to an INTEGER. Thanks to Kurt Hornik for the report! (#419)

• Fix crash when 'j' is not an integer and in [0, 1) (e.g. j = 0.1). Also throw a warning when 'j' is not an integer. (#413, #415)

• Fix plot header when layout() is used to draw multiple plots on a single device. Thanks to Dirk Eddelbuettel for the report and testing! (#412)

• Fix plot legend location when the y-axis is log scale. (#407)