* Fix the users being redirected to the 'Add Server' screen (fixes#2117) on first start
* Allow to disable the server selection screen with a new key: 'allowServerSelection'
WARNING: When that screen it's disabled, the following situations will leave the client in an endless loading state if:
- No default servers have been provided
- The first default server provided can't be reached
Signed-off-by: Fernando Fernández <ferferga@hotmail.com>