Updated thesis SOA

	modified:   2-thesis/propuesta_seminario_1/presentacion/presentacion.tex
	modified:   2-thesis/src/evaluation.tex
	new file:   2-thesis/src/formalization.tex
	new file:   2-thesis/src/soa_p2p_trust.tex
	modified:   2-thesis/src/soa_p2p_user_identification.tex
	modified:   2-thesis/src/system.tex
	modified:   2-thesis/thesis.tex
	modified:   bib/article.bib
	modified:   bib/paper.bib