Unify file upload to using fog (#5604)

Gemfile.lock

@@ -57,14 +57,6 @@ GEM
       encryptor (~> 3.0.0)
     av (0.9.0)
       cocaine (~> 0.5.3)
-    aws-sdk (2.10.73)
-      aws-sdk-resources (= 2.10.73)
-    aws-sdk-core (2.10.73)
-      aws-sigv4 (~> 1.0)
-      jmespath (~> 1.0)
-    aws-sdk-resources (2.10.73)
-      aws-sdk-core (= 2.10.73)
-    aws-sigv4 (1.0.2)
     bcrypt (3.1.11)
     better_errors (2.4.0)
       coderay (>= 1.0.0)
@@ -160,6 +152,11 @@ GEM
       i18n (~> 0.5)
     fast_blank (1.0.0)
     ffi (1.9.18)
+    fog-aws (1.4.1)
+      fog-core (~> 1.38)
+      fog-json (~> 1.0)
+      fog-xml (~> 0.1)
+      ipaddress (~> 0.8)
     fog-core (1.45.0)
       builder
       excon (~> 0.58)
@@ -167,10 +164,15 @@ GEM
     fog-json (1.0.2)
       fog-core (~> 1.0)
       multi_json (~> 1.10)
+    fog-local (0.4.0)
+      fog-core (~> 1.27)
     fog-openstack (0.1.22)
       fog-core (>= 1.40)
       fog-json (>= 1.0)
       ipaddress (>= 0.8)
+    fog-xml (0.1.3)
+      fog-core
+      nokogiri (>= 1.5.11, < 2.0.0)
     formatador (0.2.5)
     fuubar (2.2.0)
       rspec-core (~> 3.0)
@@ -226,7 +228,6 @@ GEM
     idn-ruby (0.1.0)
     ipaddress (0.8.3)
     iso-639 (0.2.8)
-    jmespath (1.3.1)
     json (2.1.0)
     json-ld (2.1.7)
       multi_json (~> 1.12)
@@ -538,7 +539,6 @@ DEPENDENCIES
   active_record_query_trace (~> 1.5)
   addressable (~> 2.5)
   annotate (~> 2.7)
-  aws-sdk (~> 2.9)
   better_errors (~> 2.4)
   binding_of_caller (~> 0.7)
   bootsnap
@@ -561,6 +561,9 @@ DEPENDENCIES
   fabrication (~> 2.18)
   faker (~> 1.7)
   fast_blank (~> 1.0)
+  fog-aws (~> 1.4)
+  fog-core (~> 1.45)
+  fog-local (~> 0.4)
   fog-openstack (~> 0.1)
   fuubar (~> 2.2)
   goldfinger (~> 2.0)