Merge pull request #74 from afmachado/master

Rename pt.txt to pt_br.txt

poisonivy/locale/pt_BR.txt

@@ -0,0 +1,5 @@
+Poison ivy (seedling) = Hera venenosa (plantilha)
+Poison ivy (sproutling) = Hera venenosa (brotando)
+Poison ivy (climbing plant) = Hera venenosa (planta trepadeira)
+
+[Poison Ivy] Loaded. =[Poison Ivy] Carregado