Merge pull request #6 from UsmanJafri/dev

Rewritten README file with better instructions and layout

Fixed server crash when waiting client disconnects

Optimization: removed unnecessary exchange of username and groupname with every message (Fixes #3)

Improved README

Updated README

Added file sharing

Added ability to kick group members

Server handshaking is now multi-threaded (Fixes #1), Added adminship transfer, added viewing group admin

Added ability to view all members, view online members and added display of available commands

Update README.md

Update README.md

Client no longer has to re-connect to begin chatting once approved

Fixed disconnection bug

Added group chat functionality (Disconnection bugged)