LionChat 1.1.0

## What's new
LionChat 1.0 -> 1.1 update

### Encryption
- Everything sent between clients and the server is encrypted using **RSA** (asymmetric) except the *public keys* themselves
- Server key pair is generated each time it is started. Client key pair is generated each time the client tries a connection to the server. Keys are **never** saved on files.
- *Auto recovery:* if for some reason encription stops working, the clients and servers ask for the key again, sending messages unencrypted for the mean time.

### Compatibility
- *Maybe* it still works with 1.0, but it would cause key request spam and probably other bugs.

### Bug Fixes
- Fixed a few typos

### Comments
- Added comments for the new features