Move image upload to S3

Gemfile.lock

@@ -118,7 +118,6 @@ GEM
     equalizer (0.0.11)
     erubis (2.7.0)
     eventmachine (1.0.9.1)
-    excon (0.62.0)
     execjs (2.7.0)
     facebook-messenger (0.11.1)
       httparty (~> 0.13, >= 0.13.7)
@@ -128,30 +127,8 @@ GEM
     ffi (1.9.18)
     figaro (1.1.1)
       thor (~> 0.14)
-    fog-aws (3.3.0)
-      fog-core (~> 2.1)
-      fog-json (~> 1.1)
-      fog-xml (~> 0.1)
-      ipaddress (~> 0.8)
-    fog-core (2.1.2)
-      builder
-      excon (~> 0.58)
-      formatador (~> 0.2)
-      mime-types
-    fog-digitalocean (0.4.0)
-      fog-core
-      fog-json
-      fog-xml
-      ipaddress (>= 0.5)
-    fog-json (1.2.0)
-      fog-core
-      multi_json (~> 1.10)
-    fog-xml (0.1.3)
-      fog-core
-      nokogiri (>= 1.5.11, < 2.0.0)
     foreman (0.85.0)
       thor (~> 0.19.1)
-    formatador (0.2.5)
     globalid (0.4.0)
       activesupport (>= 4.2.0)
     haml (4.0.7)
@@ -165,7 +142,6 @@ GEM
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
     ice_nine (0.11.2)
-    ipaddress (0.8.3)
     jaro_winkler (1.5.3)
     jbuilder (2.6.3)
       activesupport (>= 3.0.0, < 5.2)
@@ -430,8 +406,6 @@ DEPENDENCIES
   devise_token_auth
   facebook-messenger (~> 0.11.1)
   figaro
-  fog-aws
-  fog-digitalocean
   foreman
   hashie
   jbuilder (~> 2.5)