Merge pull request #2 from pi-engine/master

Update from main repo
Added missing namespace
Fixed bugs to suppress notice messages
Changed initial account name to admin to avoid conflicts with DB account
Improved description for installation reported in issue #18
Fixes issue #42 for redirection bug
Merge pull request #3 from pi-engine/master

update from main repo
Improve local support
Merge pull request #45 from voltan/master

Improve localization
Merge pull request #48 from sexnothing/master

nav edit bug
Merge pull request #49 from sexnothing/master

navigation sortable action
CS fix
CS fix
Improved param filtering with PHP filter_id function
Updated changelog
this time,through other people test, it finally has no bug...  ~_~!