v0.3.0

features

• router refactor: change from pipeline to pipeline+trie tree
• middleware
  • support array param for get/post/put/delete... method
  • middlewares could be defined on any node of the router trie
• improve performance

break changes

• 404 error is handled by app:erroruse now
• no strong relationship between route definition and execution
• no middlewares executed if no route found for the request