Changes for version 0.03
- fixed unparenthesized qw(...) instances
 - remove unnecessary 'd' modifier from decode_base64url
 - use w/a* instead of w/a for 5.8
 - better test labels
 
Modules
Token scheme definition framework for OAuth 2.0    
  
a host-wide counter    
  
the default factory for token schemes    
  
hash functions and encodings    
  
defines 'token_accept'    
  
implement bearer token schemes    
  
the 'current_secret' option group    
  
the 'format' option group and 'token_validate'    
  
implement http_hmac token scheme    
  
the 'v_id_next', 'counter', and 'random' option groups    
  
defines the root group setup    
  
the 'transport' option group and helper functions    
  
the 'vtable', 'vtable_cache', and 'vtable_pull_queue' option groups    
  
poor man's mixin/role closure builder    
  
functions for creating option groups and default values    
  
random number generator interface