Bug 1517349 - update debugger frontend (release 115). r=dwalsh

devtools/client/debugger/new/README.mozilla

@@ -1,9 +1,9 @@
 This is the debugger.html project output.
 See https://github.com/devtools-html/debugger.html
 
-Version 114
+Version 115
 
-Comparison: https://github.com/devtools-html/debugger.html/compare/release-113...release-114
+Comparison: https://github.com/devtools-html/debugger.html/compare/release-114...release-115
 
 Packages:
 - babel-plugin-transform-es2015-modules-commonjs @6.26.2