Change Version number to 0.9

Cargo.toml

 [package]
 name = "medal"
-version = "0.1.0"
+version = "0.9.0"
 authors = ["Robert Czechowski <czechowski@bwinf.de>", "Daniel Brüning <bruening@bwinf.de>"]
 
 description = "A simple online contest platform"
 homepage = "https://bwinf.de/jugendwettbewerb"
 repository = "https://git.bwinf.de/zgtm/medal-prototype"
 readme = "README.md"
-license = "LGPL-3.0"
+license = ""
 #maintenance = { status = "active-developed" }
 
 [features]
@@ -56,4 +56,4 @@ optional = true
 [dependencies.postgres]
 version = "0.15"
 features = ["with-time"]
-optional = true
\ No newline at end of file
+optional = true