set version to v0.1.7

Author: ranocha

Project.toml

@@ -1,7 +1,7 @@
 name = "TrixiAtmo"
 uuid = "c9ed1054-d170-44a9-8ee2-d5566f5d1389"
 authors = ["Benedict Geihe <bgeihe@uni-koeln.de>", "Tristan Montoya <montoya.tristan@gmail.com>", "Hendrik Ranocha <hendrik.ranocha@uni-mainz.de>", "Andrés Rueda-Ramírez <aruedara@uni-koeln.de>", "Michael Schlottke-Lakemper <michael@sloede.com>"]
-version = "0.1.7-DEV"
+version = "0.1.7"
 
 [deps]
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"