Update index.js

This changes for primus with other transports. Created one argument for transport type with the name of -p. Received the argument in program.transPort and added with options parameter.
Update benchmark.js

Binding the transport type parameter with fork process.
Update primusworker.js

Attaching the transport type with primus instance..
Update index.js
Update README.md
Update README.md
merge phpbala PR
v0.0.5 primus transport option
added simple logging interface
v0.0.6 add logger
removed unnecessary IIEF's, formatted code
engine.io websocket
Readme update
Correction
Correction
merge @balaphp pull request