Documented and fixed bug in the Linkedin counter

I have documented the code with comments in every line and have fixed a bug in the count of the shares in Linkedin. It's good, now? :P
Merge pull request #1 from fjorgemota/patch-1

- Fixed bug in LinkedIn Counter.
- Code is now all commented.
Conversion to use OOP in the function..

Now it's easy, really :P
Changed documentation

Changed documentation to follow the updates in the script
Just apply a correction to the style of script 

Nothing more than this.
Merge pull request #2 from fjorgemota/patch-1

Changed code to be OOP instead of Function.
1.0.3
Merge pull request #2 from gusfune/master

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