fix refresh task from key title error
0.1.9
pep 8 cleaning and css checkbox for flat ui
fix css on confirmation box (read/unread all)
-fix #66 and incorrect feed url are now correctly handled by server
Fix #67 : better output on export
clean refresher and retention tasks
fix feed title changing
another quick fix
fix spinner icon
fix #70 , retention task, and add new option in configuration