2008-10-06  Israel Herraiz Tabernero  <herraiz@gsyc.es>

	* Minor changes in Acknowledgements. Updated approval page. 

2008-10-02  Israel Herraiz Tabernero  <herraiz@gsyc.es>

	* Fixed minor typos in the Methodology chapter.
	
2008-10-01  Israel Herraiz Tabernero  <herraiz@gsyc.es>

	* Updated a couple of typos and sentences in the results chapter. 
	
2008-09-29  Israel Herraiz Tabernero  <herraiz@gsyc.es>

	* Initial version of the thesis.