Julia

- pyplot fixes
- Add option :tex_output_standalone to set the 'include_preamble' argument in the PGFPlots backend.
- fix ticks
- support plotly json mime
- fix image axis limits
- default to radius 0 at center for polar plots

- slightly faster load time
- fixed errant MethodError
- fix bar plots with unicodeplots
- better colorbars for contour
- add volume seriestype for GR
- fix passing a tuple to custom ticks
- add vline to pgfplots
- add tex output for pyplot
- better 3d axis labels for GR

- compatible with StatPlots -> StatsPlots name shift
- fix histograms for vectors with NaN and Inf
- change gif behaviour (remove cache-busting)
- improved docstrings for shorthands functions
- fix font rotation for pyplot
- fix greyscale images for pyplot
- clamp greyscale images with values outside 0,1
- support keyword argument for font options
- allow vector of markers for pyplot scatter

- improve behaviour of plotlyjs backend

- Add support for discrete contourf plots with GR

- Fix the `showtheme` function