Update webmock version

Author: oestrich

Gemfile.lock

@@ -16,7 +16,7 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.1)
       tzinfo (~> 1.1)
-    addressable (2.3.5)
+    addressable (2.3.6)
     aruba (0.5.4)
       childprocess (>= 0.3.6)
       cucumber (>= 1.1.1)
@@ -32,8 +32,8 @@ GEM
     childprocess (0.5.3)
       ffi (~> 1.0, >= 1.0.11)
     coderay (1.1.0)
-    crack (0.4.1)
-      safe_yaml (~> 0.9.0)
+    crack (0.4.2)
+      safe_yaml (~> 1.0.0)
     cucumber (1.3.15)
       builder (>= 2.1.2)
       diff-lcs (>= 1.1.3)
@@ -93,7 +93,7 @@ GEM
     rspec-mocks (3.0.1)
       rspec-support (~> 3.0.0)
     rspec-support (3.0.0)
-    safe_yaml (0.9.7)
+    safe_yaml (1.0.3)
     sinatra (1.4.5)
       rack (~> 1.4)
       rack-protection (~> 1.4)
@@ -107,8 +107,8 @@ GEM
     tins (1.3.0)
     tzinfo (1.2.1)
       thread_safe (~> 0.1)
-    webmock (1.16.0)
-      addressable (>= 2.2.7)
+    webmock (1.18.0)
+      addressable (>= 2.3.6)
       crack (>= 0.3.2)
     xpath (2.0.0)
       nokogiri (~> 1.3)