Improved error message after failing to translate

[george-gca]

Added information about which key it failed to translate, for easier debugging

[george-gca]

@kurtsson I am interested in helping maintain this plugin

[kurtsson]

@kurtsson I am interested in helping maintain this plugin

That would be awesome :), I haven't used it for years, just trying to make it accessible for those who do

[george-gca]

@kurtsson please, can you just help me setup a dev environment to test the PRs, or point me in that direction? Should I do the manual installation for every PR? I am no day-by-day Ruby developer, but I want to keep improving on this.

[george-gca]

@kurtsson can you help me with this?

[figgles]

+1 on more useful error messages.

[figgles]

@kurtsson I also would like to help maintain this plugin as I will be using it for the next few years most likely.