Dotdrop

* fix template link value bug (see 268)

features:

* add ability to template the `link` value in the config (see [related doc](https://dotdrop.readthedocs.io/en/latest/config-details/#dynamic-dotfile-link-value) and issue 268)
* add two new config options `template` and `template_dotfile_default` to control if a dotfile is to be templated (see [related doc](https://dotdrop.readthedocs.io/en/latest/templating/#templating-or-not-templating) and issue 267)
* add more tests
* update doc

bug fixes:

* fix *fake dotfiles* src/dst removed on import (256)
* fix `--force-actions` not applied to default actions (261)

* fix import error (250)

features:
* migrate doc to [readthedocs](https://dotdrop.readthedocs.io/en/latest/)
* refactor templating to error/warn on undefined variables
* refactor lower layer parsing and variable bugs (246, 248, 249, 250)
* fish completion (244)
* improve debug logs
* more tests (and coverage)
* more doc

bug fixes:
* fix bug with empty dst or src (256)
* fix macro bug (253)
* fix compare bug
* profile inheritance bug fix
* fix bug when subprocess pipe gets filled out

features:
* add dependencies check at start (225)
* actions starting with an underscore (`_`) are silent in the output (see 228 and [the related doc](https://github.com/deadc0de6/dotdrop/wiki/usage-actions))
* remove `cp` from the dependencies and replace with `shutil`

bug fixes
* fix double import issue (233)
* fix patch not having the correct rights when diffing (234)
* fix TemplateNotFound bug (226)
* fix `--dry` overwriting config file (237)

* add ability to import as a different path (`--as`) (220)
* fix import path bug (212)
* fix redundant path (214)
* fix zsh completion in aur (141caef07f716da726879ff61dd084819912d68a)
* more explicit message on config error (221)