fix(build): publish typings directory to our npm snapshot branch

.gitignore

@@ -22,6 +22,7 @@ tmp
 *.js.map
 
 # Or type definitions we mirror from github
+# (NB: these lines are removed in publish-build-artifacts.sh)
 **/typings/**/*.d.ts
 **/typings/tsd.cached.json
 

scripts/publish/publish-build-artifacts.sh

@@ -41,7 +41,7 @@ function publishRepo {
   # copy over build artifacts into the repo directory
   rm -rf $REPO_DIR/*
   cp -R $ARTIFACTS_DIR/* $REPO_DIR/
-  cp .gitignore $REPO_DIR/
+  grep -v /typings/ .gitignore > $REPO_DIR/.gitignore
   echo `date` > $REPO_DIR/BUILD_INFO
   echo $SHA >> $REPO_DIR/BUILD_INFO