Merge pull request #20 from roselone/master

aop
commit add assertion
Merge branch 'master' of https://github.com/bxl1989/FootWith
log4j bug fixed
Merge pull request #21 from roselone/master

json contain
Merge remote-tracking branch 'origin/master'
commit add 2 mediator
Merge pull request #12 from bxl1989/master

add 2 mediator