Merge branch 'master' into develop
add snakeyaml dependency
yaml introduction
add yaml support
extends route mapping: when default mapping is used, no ConfigurationException is raised, but log
ignore idea file
add some test case
update gitignore
add plugin lookup feature and start wrote plugin content
add resolver, context adpater, initial impl. of file resolver
adding test on resolver class
add toString information
implement cache context adapter using guava cache
first impl. of context adapter
start controller
upd. license
implement controller, service and plugin
cleanning source
switch netty version to 3.9.5
add quick access to headers