find config files in ERESSEA_DIR if config.install is not set

scripts/eressea/path.lua

@@ -1,11 +1,8 @@
-local path = os.getenv("ERESSEA_DIR")
-if not path then
+local path = '.'
 if config.install then
 	path = config.install
 else
-        path = '.'
-    end
-else
+    path = os.getenv("ERESSEA_DIR") or path
     config.install = path
 end
 path = path .. "/scripts"

tests/eressea.ini

@@ -7,6 +7,5 @@ locales                        = de,en
 
 [lua]
 install                        = ..
-paths                          = lunit:scripts
 maxnmrs                        = 20
 rules                          = e2