Julia

- use FFMPEG.jl
- add missing method for convertToAnyVector

- add areaplot
- allow missing in z_color arguments
- more general tuple recipe
- stephist logscale improvements

- improvements to handle missings
- pyplot: allow setting the color gradient for z values
- document :colorbar_entry
- limit number of automatic bins
- fix ENV['PLOTS_DEFAULT_BACKEND']
- don't let aspect_ratio impact subplot size
- implement arrowstyle for GR
- fix bug in plotly_convert_to_datetime
- improve missing support
- gr: polar heatmaps
- make sure show returns nothing

- fix gr_display

- Replace StaticArrays with GeometryTypes
- Contour fixes for GR

- Update to the new PyCall and PyPlot API
- fix drawing of ticks
- fix y label position with GR