Update httpotion to 3.1.3

There were couple of hacks in test/elixir/lib/couch.ex
We've got changes needed to remove them into httpotion 3.1.3.
The changes were introduced in:
- https://github.com/myfreeweb/httpotion/pull/118
- https://github.com/myfreeweb/httpotion/pull/130

1 files changed, 1 insertions, 1 deletions

diff --git a/mix.lock b/mix.lock
index 34c0ea961..343215fdc 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,7 +1,7 @@
 %{
   "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], [], "hexpm"},
   "credo": {:hex, :credo, "1.0.5", "fdea745579f8845315fe6a3b43e2f9f8866839cfbc8562bb72778e9fdaa94214", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm"},
-  "httpotion": {:hex, :httpotion, "3.1.2", "50e3e559c2ffe8c8908c97e4ffb01efc1c18e8547cc7ce5dd173c9cf0a573a3b", [:mix], [{:ibrowse, "== 4.4.0", [hex: :ibrowse, repo: "hexpm", optional: false]}], "hexpm"},
+  "httpotion": {:hex, :httpotion, "3.1.3", "fdaf1e16b9318dcb722de57e75ac368c93d4c6e3c9125f93e960f953a750fb77", [:mix], [{:ibrowse, "== 4.4.0", [hex: :ibrowse, repo: "hexpm", optional: false]}], "hexpm"},
   "ibrowse": {:hex, :ibrowse, "4.4.0", "2d923325efe0d2cb09b9c6a047b2835a5eda69d8a47ed6ff8bc03628b764e991", [:rebar3], [], "hexpm"},
   "jason": {:hex, :jason, "1.1.2", "b03dedea67a99223a2eaf9f1264ce37154564de899fd3d8b9a21b1a6fd64afe7", [:mix], [{:decimal, "~> 1.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm"},
   "jiffy": {:hex, :jiffy, "0.15.2", "de266c390111fd4ea28b9302f0bc3d7472468f3b8e0aceabfbefa26d08cd73b7", [:rebar3], [], "hexpm"},