v0.5.4

MITgcm v0.5.4

Diff since v0.5.2

Merged pull requests:

• bump version (#150) (@gaelforget)
• update notebook deps (#151) (@gaelforget)
• System check improvements (#152) (@gaelforget)
• docs update (#153) (@gaelforget)

Closed issues:

• does MITgcm.jl support mnc? (#149)