US-0001 - adding_proposal.feature complete implementation and test
Resolved hound issues
Added structure for the creation of pages + Bootstrap
Reorganized model structure + Datamapper integration (to check)
Added basic structure with views for Home and AddProposal
Refactor on adding a proposal

* Now with all needed parts for Datamapper to work
* Added fields validation
* Function for validation moved to the controller helper
* Pages using ERB with partials
DataMapper integrado en el modelo y en los test de integracion
Mergeado la integracion del DataMapper con test unitarios y de interaccion
specs autogenerados eliminados
Fixed wrong used validations + DataMapper specified on controller
Subida de Propuesta funcionando
Merge pull request #2 from cravacuore/US-001

US-0001 - adding_proposal.feature complete implementation and test