features
* simplify the use of python env with `DOTDROP_VIRTUALENV` (see [the doc](https://dotdrop.readthedocs.io/en/latest/installation/#as-a-submodule-in-a-virtualenv))
* add ability to access all variables in a dictionary in templates using `_vars` (404, [an example](https://github.com/deadc0de6/dotdrop/blob/master/tests-ng/template-vars-dict.sh#L42))
* add a new command `uninstall` to uninstall files installed by dotdrop (403, [the doc](https://dotdrop.readthedocs.io/en/latest/usage/#uninstall-dotfiles))
* add a new `install` command line switch `--remove-existing` to remove any files not managed by dotdrop (403)
* deprecate `trans_read` and `trans_write` which become `trans_install` and `trans_update` respectively (415, [the doc](https://dotdrop.readthedocs.io/en/latest/config/config-transformations/))
* ignore virtualenv in checks (416)
* add more tests (and more coverage)
* use bash strict mode in tests
* improve documentation
bug fixes
* fix several bugs in ignore patterns (see 388, 402, 405)
* fix chmod not being applied to subfile when the dotfile is a directory (413)