Enhencing video synchronization
Adding XML files examples for session test
Cleaning code: Removing comments
Issue #28: Fixing bugs on remote computer connection
Issue #28: Add some functions to get url connection for https
Issue #14: root can be change user to master and inversely
[Fix] Display the real number of user
Issue #7: reject user if this name is root or empty
Issue #7: remove rootSocketId system
Issue #9: Enhencing session future: Indicating while session is loaded, playing, paused, stopped or recording
Issue #9: Improve list items click recording for session
Revert "[Fix] Display the real number of user"

This reverts commit 0d0cb8d498abca28926ca3aa93418ee4a624d7b4.
Remove connect-multyparty and consolidate node module
[Clean] clean code in client.js
Issue #5 : Add come comments on new functions