refactor time? about dotfiles HOT 1 OPEN

latest commits were mostly refactoring of the bash modules. Here's a summary from magit, non-refactors taken out

Recent commits
e403fe3 formatting
2eecd3a turn prompt_reset into a function
0301653 move bashrc_* aliases from 20_env.sh to 00_modules.sh and turn into functions
a5315ce re-order code in .bashrc so it makes more sense
3cc282c add load() function
c51f60e comments to explain what's going on with node loads
a5f09ad DRY nvm function loading
9ede4d7 * merged bashrc tidy
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45daa45 | * Merge pull request #54 from sinewalker/clean-bashrc
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8c584b0 | | * origin/clean-bashrc tidy ~/.bashrc by moving module loading logic into its own module, and dotfiles function into dotfiles module
| |/
a2788d5 * | linebreaks
|/
b3a5f2c move Work-related CDPATH changes to 80_work.sh and make DRY
e398158 only source 80_work on a work computer (identified by hostname)
935f44b formatting, and more generic bashrc_banner clean-up
e872140 describe(): fix self-describe, use bash_completion's _command
984f515 amstrad banner and shell prompt, and a bit of formatting
2a30401 fancy login display logic, à la the AMSTRAD CPC, with colours
e44d000 fix FUNCDESC for functions() and list() functions; make list page with less
201e351 Show loading progress when sourcing files
1d388d3 make sure defined() doesn't find aliases, and describe() describe doesn't find variable

from dotfiles.