Display version in the footer

[shippy]

In the interest of transparency, Shifts should have the release number in the footer. This should be trivial to implement, taking Reservations#560 as example.

[thomasweng15]

I read through the reservations issue log and noticed that you were deciding whether to use 'git describe' or 'git describe --tag'. In the reservations issue, 'git describe' produced ugly output, but on shifts, it seems to be the opposite situation:

$ git describe
v2.0.0-383g27de87d

$ git describe --tag
v3.0.0.alpha10-172-g27de87d

So for now I will proceed with using the former rather than the latter.

[mnquintana]

Hmm, I get identical output with both commands.

[thomasweng15]

Did you get the former or the latter for both?

Since we are releasing version 3.0.0 I should actually probably use the latter. When I run git describe --tags --abbrev=0 I get v3.0.0.alpha10.