Julia

- remove use of imagemagick; saving gifs now requires ffmpeg
- improvements to ffmpeg gif quality and speed
- overhaul of fonts, allows setting fonts in recipes and with magic arguments
- added `camera` attribute to control camera position for 3d plots
- added `showaxis` attribute to control which axes to display
- improvements of polar plots axes, and better backend consistency
- changed the 'spy' recipe back to using heatmap
- added `scatterpath` seriestype
- allow plotlyjs to save svg
- add `reset_defaults()` function to reset plot defaults
- update syntax to 0.6
- make `fill = true` fill to 0 rather than to 1
- use new `df` syntax in StatsPlots examples
- allow changing the color of legend box
- implement `title_location` for gr
- add `hline` marker to pgfplots - fixes errorbars
- pyplot legends now show marker types
- pyplot colorbars take font style from y axis
- pyplot tickmarks color the same as axis color
- allow setting linewidth for contour in gr
- allow legend to be outside plot area for pgfplots
- expand axis extrema for heatmap
- extendg grid lines to axis limits
- fix `line_z` for pyplot and gr
- fixed colorbar problem for flipped axes with gr
- fix marker_z for 3d plots in gr
- fix `weights` functionality for histograms
- fix gr annotations with colorbar
- fix aspect ratio in gr
- fix "hidden window" problem after savefig in gr
- fix pgfplots logscale ticks error
- fix pgfplots legends symbols
- fix axis linking for plotlyjs
- fix plotting of grayscale images

- fix a bug when passing a vector of functions with no bounds (e.g. `plot([sin, cos])`)
- export `pct` and `px` from Plots.PlotMeasures

- support `plotattributes` rather than `d` in recipes
- no longer export `w`, `h` and names from Measures.jl; use `using Plots.PlotMeasures` to get these names back
- `bar_width` now depends on the minimum distance between bars, not the mean
- better automatic x axis limits for plotting Functions
- `tick_direction` attribute now allows ticks to be on the inside of the plot border
- removed a bug where `p1 = plot(randn(10)); plot(p1, p2)` made `display(p1)` impossible
- allow `plot([])` to generate an empty plot
- add `origin` framestyle
- ensure finite bin number on histograms with only one unique value
- better automatic histogram bins for 2d histograms
- more informative error message on passing unsupported seriestype in a recipe
- allow grouping in user recipes
- GR now has `line_z` and `fill_z` attributes for determining the color of shapes and lines
- change GR default view angle for 3D plots to match that of PyPlot
- fix `clims` on GR
- fix `marker_z` for plotly backend
- implement `framestyle` for plotly
- fix logscale bug error for values < 1e-16 on pyplot
- fix an issue on pyplot where >1 colorbar would be shown if there was >1 series
- fix `writemime` for eps

- added a new `framestyle` argument with choices: :box, :semi, :axes, :grid and :none
- changed the default bar width to 0.8
- added working ribbon to plotly backend
- ensure that automatic ticks always generate 4 to 8 ticks
- group now groups keyword arguments of the same length as the input
- allow passing DateTime objects as ticks
- allow specifying the number of ticks as an integre
- fix bug on errorbars in gr
- fixed some but not all world age issues
- better margin with room for text
- added a `match` option for linecolor
- better error message un unsupported series types
- add a 'stride' keyword for the pyplot backend

- new grid line style defaults
- `grid` is now an axis attribute and a magic argument: it is now possible to modify the grid line style, alpha and line width
- Enforce plot order in user recipes
- import `plot!` from RecipesBase
- GR no longer automatically handles _ and ^ in texts
- fix GR colorbar for scatter plots

- fix an issue with Juno/PlotlyJS compatibility on new installations
- fix markers not showing up in seriesrecipes using :scatter
- don't use pywrap in the pyplot backend
- improve the bottom margin for the gr backend