v0.4.0

Materials v0.4.0

Diff since v0.3.0

Merged pull requests:

• Install TagBot as a GitHub Action (#58) (@JuliaTagBot)
• Memory (#64) (@jvaara)
• Fixed integrate_material!() error message (#65) (@vjhaanpaa)
• Summercleaning2020 (#66) (@Technologicat)
• Add Chaboche model with thermal effects (#67) (@Technologicat)
• Update Project.toml (#70) (@JaninGitHubAccount)

Closed issues:

• The error generation for missing integrate_material! for material type is flawed (#54)
• New release v"0.3.0" (#63)