Update deps

mix.exs

@@ -51,7 +51,7 @@ defmodule Eventos.Mixfile do
       {:postgrex, ">= 0.0.0"},
       {:phoenix_html, "~> 2.10"},
       {:gettext, "~> 0.11"},
-      {:cowboy, "~> 1.0"},
+      {:cowboy, "~> 2.4", override: true},
       {:guardian, "~> 1.0"},
       {:guardian_db, "~> 1.0"},
       {:comeonin, "~> 4.0"},
@@ -59,8 +59,8 @@ defmodule Eventos.Mixfile do
       {:cors_plug, "~> 1.2"},
       {:ecto_autoslug_field, "~> 0.3"},
       {:rsa_ex, "~> 0.1"},
-      {:geo, "~> 2.0"},
-      {:geo_postgis, "~> 1.0"},
+      {:geo, "~> 3.0"},
+      {:geo_postgis, "~> 2.0"},
       {:timex, "~> 3.0"},
       {:timex_ecto, "~> 3.0"},
       {:icalendar, "~> 0.6"},
@@ -71,7 +71,7 @@ defmodule Eventos.Mixfile do
       {:ex_crypto, "~> 0.9.0"},
       {:http_sign, "~> 0.1.1"},
       {:ecto_enum, "~> 1.0"},
-      {:ex_ical, github: "fazibear/ex_ical"},
+      {:ex_ical, "~> 0.2"},
       {:bamboo, "~> 1.0"},
       {:bamboo_smtp, "~> 1.5.0"},
       {:geolix, "~> 0.16"},