Merge pull request #3 from ntop001/master

V2.0 release
Merge pull request #10 from ntop001/master

fix issue #4 and #7
Update README.md
Merge pull request #16 from ntop001/master

fix some errors
rename to umengtools
Merge branch 'master' of github.com:umeng/umeng-muti-channel-build-tool