__rvm_parse_args: bad pattern error in zsh 5.0.3

I am getting the following error when trying to run rvm with arguments (even rvm list):
```
__rvm_parse_args:28: bad pattern: [0-9a-zA-Z]*|@*
```

I just upgraded to zsh 5.0.3 today. I reinstalled the latest version of rvm. I'm unable to run rvm -v to verify which version it actually is.

I've tried adjusting line 93 of the rvm cli script from:
```
[0-9a-zA-Z]*|@*)
```

to:
```
([0-9a-zA-Z]*|@*)
```

No luck so far. Any help would be greatly appreciated! Let me know if any additional information is needed!