Fixed bugs and added routings

- Fixed divs link and show link in docs#shourced view
- Fixed shoo link in divs#index view
- Added routings 
 docs/sourcedb/
 docs/sourcedb/:sourcedb
 projects/:project_id/docs/sourcedb/
 projects/:project_id/docs/sourcedb/:sourcedb
Added docs/sourcedb/:sourcedb/sourceid/:soureceid/annotations routing