cogito-0.17.4

Tadam, cogito-0.17.4.

Just a few tiny bugfixes, actually mostly cosmetical.

So, what's new?

* Make cg-commit -p imply -e
* Fix cg-commit -M with relative path called from a subdirectory
* Be way more paranoid when failing to apply patches w/ cg-commit -p
* Do not use type -P (bash31ism)
* Make documentation build with `make` not being GNU make
* s/cg-admin-uncommit/cg-seek/
* [PATCH] When pushing, auto-follow lightweight tags as well
* When fetching, autofollow lightweight tags as well

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