Prepare for release v3.1.3 (#434)

* Prepare for release v3.1.3

Author: jaeopt

.travis.yml

@@ -82,7 +82,7 @@ jobs:
       os: osx
       osx_image: xcode10
       env:
-        - VERSION=3.1.2
+        - VERSION=3.1.3
       install:
         # install hub
         - wget https://github.com/github/hub/releases/download/v2.11.2/hub-darwin-amd64-2.11.2.tgz -O /tmp/hub-darwin-amd64-2.11.2.tgz && tar -xvf /tmp/hub-darwin-amd64-2.11.2.tgz -C /usr/local/opt && ln -s /usr/local/opt/hub-darwin-amd64-2.11.2/bin/hub /usr/local/bin/hub
@@ -95,7 +95,7 @@ jobs:
       os: osx
       osx_image: xcode10
       env:
-        - VERSION=3.1.2
+        - VERSION=3.1.3
       install:
         # install hub
         - wget https://github.com/github/hub/releases/download/v2.11.2/hub-darwin-amd64-2.11.2.tgz -O /tmp/hub-darwin-amd64-2.11.2.tgz && tar -xvf /tmp/hub-darwin-amd64-2.11.2.tgz -C /usr/local/opt && ln -s /usr/local/opt/hub-darwin-amd64-2.11.2/bin/hub /usr/local/bin/hub

CHANGELOG.md

@@ -1,5 +1,16 @@
 # Optimizely Objective-C SDK Changelog
 
+## 3.1.3
+August 8th, 2019
+
+This release renames some protocols in `OPTLYJSONModel` to avoid potential name conflicts with `JSONModel` in client apps.
+
+### New Features
+* No new features for this patch release.
+
+### Bug Fixes:
+* This fix changes the protocol names of potential conflicts (`Ignore` -> `OPTLYIgnore`, `Index` -> `OPTLYIndex`) in `OPTLYJSONModel` and removes deprecated `ConvertOnDemand`.
+
 ## 3.1.2
 July 15th, 2019