Merge pull request #9 from jsilvestre/dev

Improved: syntax
try to fixe traceback bug
try to fixe traceback bug
traceback compatibility
traceback compatibility + move CoreClass
Added: tests for application permission in doctype list
Refactored: simplified the lowersing of index
Merge branch 'dev' of https://github.com/n-a-n/cozy-databrowser into dev
Added: linter to the cake file