add attachement view.
Merge pull request #21 from hutuxiansheng/master

Add Examination to Evolve
permission module version 1.0_13.7.16
Merge jason's master branch
Merge pull request #22 from pigmike/master

Permission Module
Merge pull request #23 from hutuxiansheng/master

fix exam create error
Merge pull request #24 from hutuxiansheng/master

fix exam publish error
Add discuss routes for create new discuss.
meger jasli2 master branch