Adding .npmignore so that dist directory gets published

.npmignore

@@ -0,0 +1,27 @@
+# OS X
+.DS_Store
+
+# IDE files
+.idea
+
+# Logs
+logs
+*.log
+
+# Runtime data
+pids
+*.pid
+*.seed
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# Downloaded stuff for autorest
+packages
+tools
+
+# Users Environment Variables
+.lock-wscript