Add @since tags to all methods in public namespace
* enhance the app development experience - you can look up the
method introduction right inside the code without searching
via git blame
* easier to write apps for multiple versions
Added extra checks for invalid file chars in newfile.php and newfolder.php
- added PHP utility function to check for file name validity
- fixes issue where a user can create a file called ".." from the files UI
- added extra checks to make sure newfile.php and newfolder.php also
check for invalid characters
the only problem that I found with it so far is that it gives a database locked error on login,
the rest seems to work fine but more testing is required.