Gr

[Diff since v0.49.0](https://github.com/jheinen/GR.jl/compare/v0.49.0...v0.49.1)

[Diff since v0.48.0](https://github.com/jheinen/GR.jl/compare/v0.48.0...v0.49.0)


**Closed issues:**
- confused about the directions of axes in `heatmap` and `imshow` (241)
- The grid is red in mac OS (298)
- Cannot Plot 3D (303)
- every plot closes/reopens GKS QtTerm (306)

**Merged pull requests:**
- Adjusted indents on deps/build.jl (299) (komi1230)
- modified gr_copyseg to gr_copysegws (302) (komi1230)

[Diff since v0.47.0](https://github.com/jheinen/GR.jl/compare/v0.47.0...v0.48.0)


**Closed issues:**
- A strange character in the window titles. (294)

[Diff since v0.46.0](https://github.com/jheinen/GR.jl/compare/v0.46.0...v0.47.0)


**Closed issues:**
- Surface plot throws an error for an array that has low variance (120)

**Merged pull requests:**
- Install TagBot as a GitHub Action (288) (JuliaTagBot)