`rvm osx-ssl-certs update all` ineffective 

```
$ rvm --debug osx-ssl-certs update all
ruby-2.0.0-p353 # getting ruby certs path
Running /Users/ethan/.rvm/hooks/after_use_maglev
ruby-2.0.0-p598 # getting ruby certs path
Running /Users/ethan/.rvm/hooks/after_use_maglev
ruby-2.1.5 # getting ruby certs path
Running /Users/ethan/.rvm/hooks/after_use_maglev
/etc/openssl/cert.pem # updating certs
Updating certificates for /etc/openssl/cert.pem: Updating certificates in '/etc/openssl/cert.pem'.
ethan password required for 'command mv -f /var/folders/h9/3150s5jj0nq61jvwgrs5fg200000gn/T//tmp.L1NQInnuQAfeySTXmb /etc/openssl/cert.pem': 
Updated.
__rvm_rm_rf already gone: /Users/ethan/.rvm/tmp/67857*

$ rvm --debug osx-ssl-certs status all
ruby-2.0.0-p353 # getting ruby certs path
Running /Users/ethan/.rvm/hooks/after_use_maglev
ruby-2.0.0-p598 # getting ruby certs path
Running /Users/ethan/.rvm/hooks/after_use_maglev
ruby-2.1.5 # getting ruby certs path
Running /Users/ethan/.rvm/hooks/after_use_maglev
/etc/openssl/cert.pem # updating certs
Certificates for /etc/openssl/cert.pem: Old.
__rvm_rm_rf already gone: /Users/ethan/.rvm/tmp/67857*
```

autolibs:
```
$ rvm autolibs status
---
value: 4
number: 4
runner: osx
```

this may or may not be causing issue with bundler on ruby-2.0.0-p353 not being able to install:

```
$ bundle 
Fetching source index from https://rubygems.org/
Could not verify the SSL certificate for https://rubygems.org/quick/Marshal.4.8/i18n-0.6.9.gemspec.rz.
There is a chance you are experiencing a man-in-the-middle attack, but most likely your system doesn't have the CA certificates needed for verification. For information about OpenSSL
certificates, see bit.ly/ruby-ssl. To connect without using SSL, edit your Gemfile sources and change 'https' to 'http'.
```

should be ensure_readable, no?