Version bumps for gems (#2838)

* Update aws-sdk to version 2.9.15

* Update ox to version 2.5.0

* Update sidekiq-unique-jobs to version 5.0.8

* Update rspec-rails to version 3.6.0

Gemfile.lock

@@ -52,13 +52,13 @@ GEM
       encryptor (~> 3.0.0)
     av (0.9.0)
       cocaine (~> 0.5.3)
-    aws-sdk (2.9.14)
-      aws-sdk-resources (= 2.9.14)
-    aws-sdk-core (2.9.14)
+    aws-sdk (2.9.15)
+      aws-sdk-resources (= 2.9.15)
+    aws-sdk-core (2.9.15)
       aws-sigv4 (~> 1.0)
       jmespath (~> 1.0)
-    aws-sdk-resources (2.9.14)
-      aws-sdk-core (= 2.9.14)
+    aws-sdk-resources (2.9.15)
+      aws-sdk-core (= 2.9.15)
     aws-sigv4 (1.0.0)
     bcrypt (3.1.11)
     better_errors (2.1.1)
@@ -258,7 +258,7 @@ GEM
       http (~> 2.0)
       nokogiri (~> 1.6)
       openssl (~> 2.0)
-    ox (2.4.13)
+    ox (2.5.0)
     paperclip (5.1.0)
       activemodel (>= 4.2.0)
       activesupport (>= 4.2.0)
@@ -360,26 +360,26 @@ GEM
     rotp (2.1.2)
     rqrcode (0.10.1)
       chunky_png (~> 1.0)
-    rspec-core (3.5.4)
-      rspec-support (~> 3.5.0)
-    rspec-expectations (3.5.0)
+    rspec-core (3.6.0)
+      rspec-support (~> 3.6.0)
+    rspec-expectations (3.6.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.5.0)
-    rspec-mocks (3.5.0)
+      rspec-support (~> 3.6.0)
+    rspec-mocks (3.6.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.5.0)
-    rspec-rails (3.5.2)
+      rspec-support (~> 3.6.0)
+    rspec-rails (3.6.0)
       actionpack (>= 3.0)
       activesupport (>= 3.0)
       railties (>= 3.0)
-      rspec-core (~> 3.5.0)
-      rspec-expectations (~> 3.5.0)
-      rspec-mocks (~> 3.5.0)
-      rspec-support (~> 3.5.0)
+      rspec-core (~> 3.6.0)
+      rspec-expectations (~> 3.6.0)
+      rspec-mocks (~> 3.6.0)
+      rspec-support (~> 3.6.0)
     rspec-sidekiq (3.0.1)
       rspec-core (~> 3.0, >= 3.0.0)
       sidekiq (>= 2.4.0)
-    rspec-support (3.5.0)
+    rspec-support (3.6.0)
     rubocop (0.46.0)
       parser (>= 2.3.1.1, < 3.0)
       powerpack (~> 0.1)
@@ -405,7 +405,7 @@ GEM
       rufus-scheduler (~> 3.2)
       sidekiq (>= 3)
       tilt (>= 1.4.0)
-    sidekiq-unique-jobs (5.0.7)
+    sidekiq-unique-jobs (5.0.8)
       sidekiq (>= 4.0, <= 6.0)
       thor (~> 0)
     simple-navigation (4.0.5)