Add enableReviewerByEmail to project config JSON

This fixes an issue where the project screen would not load as the
setting is required by the GWT UI.

Change-Id: Ic0499ccbf79cd3a504cdfcc8c33d8d0883308264
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/project/ConfigInfoImpl.java b/gerrit-server/src/main/java/com/google/gerrit/server/project/ConfigInfoImpl.java
index ce21413..feeea95 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/project/ConfigInfoImpl.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/project/ConfigInfoImpl.java
@@ -96,6 +96,7 @@
     this.requireChangeId = requireChangeId;
     this.rejectImplicitMerges = rejectImplicitMerges;
     this.createNewChangeForAllNotInTarget = createNewChangeForAllNotInTarget;
+    this.enableReviewerByEmail = enableReviewerByEmail;
     if (serverEnableSignedPush) {
       this.enableSignedPush = enableSignedPush;
       this.requireSignedPush = requireSignedPush;