Ignore /bin on new apps

railties/lib/rails/generators/rails/app/templates/gitignore

@@ -4,13 +4,14 @@
 # or operating system, you probably want to add a global ignore instead:
 #   git config --global core.excludesfile '~/.gitignore_global'
 
-# Ignore bundler config
+# Ignore bundler related files
 /.bundle
+/bin
 
-# Ignore the default SQLite database.
+# Ignore the default SQLite database
 /db/*.sqlite3
 /db/*.sqlite3-journal
 
-# Ignore all logfiles and tempfiles.
+# Ignore all logfiles and tempfiles
 /log/*.log
 /tmp