update gitignore

Author: RettBehrens

.gitignore

@@ -9,8 +9,6 @@
 /test/tmp/
 /test/version_tmp/
 /tmp/
-.ruby-version
-.ruby-gemset
 
 # Used by dotenv library to load environment variables.
 .env
@@ -44,9 +42,9 @@ build-iPhoneSimulator/
 
 # for a library or gem, you might want to ignore these files since the code is
 # intended to run in multiple environments; otherwise, check them in:
-# Gemfile.lock
-# .ruby-version
-# .ruby-gemset
+Gemfile.lock
+.ruby-version
+.ruby-gemset
 
 # unless supporting rvm < 1.11.0 or doing something fancy, ignore this:
 .rvmrc