develop milestone for cross analyzer
Merge branch 'master' of https://github.com/dianping/cat
refactor cache report
show 0 when no data found for a method's count
add sortby for method
amend sortie feature
Merge branch 'master' of https://github.com/dianping/cat
Merge pull request #570 from leonindy/master

refactor cache report
cross report implements complete stage 1
Merge branch 'master' of https://github.com/dianping/cat
clean code
update test case
delete unused code
Merge pull request #571 from jialinsun/master

develop milestone for cross report
merge code
modify the css