* pass url parameters through context.Context
* fix url param names without colon prefix
* change context params to vars
* replace url vars in tests using new api
* rename vars to params
* add some comments
* rename seturlvars to seturlparams
* add macaron code to the code base
* remove unused secure cookies support from macaron
* clean up modules
* remove com dependency
* fix silly typos
* little cleanup, remove recovery middleware
* remove logger middleware
* remove static handler and remove unused context methods
* bring inject into macaron codebase
* remove unused applicator
* add back macaron license
* more cleanups in macaron code
* remove unused injector Set method
* remove unused context methods: param to int conversion, body helper type, cookie helpers
* remove action from context
* remove complex environment handling, we only use Env variable
* restore ReplaceAllParams to fix the tests
