Old versions of dependencies about resh

[curusarn]

Go version becomes irrelevant once we start shipping binaries

[curusarn]

Ubuntu can get fresh golang via snap

[curusarn]

Can we drop support for prehistoric macOS bash because zsh is the default shell since Catalina?

[curusarn]

Go modules are available since 1.11 which is a higher version than in bionic

[curusarn]

Not an issue of versions but keep in mind that macOS comes with BSD utils

[curusarn]

bind -X requires bash 4.3+

[curusarn]

bind -x widgets require bash 4.0+

[curusarn]

| OS | | bash | zsh |
|------|---------|------|
| macOS (Mojave) | 3.2.57 | 5.3 |
| macOS (Catalina) | 3.2.57 | 5.7.1 |
| Ubuntu LTS 16.04 (Xenial) | 4.3 | 5.1.1 |
| Ubuntu LTS 18.04 (Bionic) | 4.4 | 5.4.2 |
| Debian Stretch (oldstable) | 4.4 | 5.3.1 |
| Debian Buster (stable) | 5.0 | 5.7.1 |

[curusarn]

We should check the shell version and refuse to enable RESH in shells with too old version

[curusarn]

Closing - there nothing to do except: #185