BioWSR Code

* Added lib, where most of libraries are going to live.

* Now dynamic loading of modules is enabled. And it works!

* Added bash wrapper to call the service

* 'sessionDir' now can be either a relative or an absolute path.

* Now, the public queries discard the token parameter.

* For both scripts, I have added session variables from config.ini file. However, I have found some
problems using "Dir.tmpdir" method. So, I have decided to give the whole path of session directory.
* WSRendpoint.rb: the method "session_tokens" has been developed within WSRlogin.rb cgi.
* WSRendpoint.rb: the last access reported by token id has to be before than 10 hours.

* I had to change the syntax of method's parameter. The reason was because the old syntanx reported an
error in Ruby 1.8. For more information, read en.wikibooks.org/wiki/Ruby_Programming/Syntax/Method_Calls

* Database schema for the metadata needed by ServiceInstances module.

* Some micro-improvements in documentation.

* Optimization on dynamic module loading, so the only needed is instantiated.