Refactor URL paths

[KMax]

We have number of URL paths which are different from the others' style or expose server internals. To be more specific I list paths which I'd like to change:

• /login.html -> /login
• /index -> /
• /config/SystemSettings -> /config/system
• /config/DriversInstalled -> /config/drivers/installed or /drivers/installed
• /config/AvailableDrivers -> /config/drivers/available or /drivers/available
• /config/UploadDriver -> /config/drivers/upload or /drivers/upload
• /config/AdminPanel -> /config/users

Suggestions are welcome!