Remove ugly index files from pages
Moving some files, little changes
Change documents hierarchy
Revert `descriptos` to `descritos` change
Fix link

To `Indexacion-archivos-adjuntos` in `entregas/2012.05.14-entrega-documentacion-sprint.4-5/Configuracion-de-IFilter`
Fix links in 2012.02.17-entrega-propuesta-trabajo-documentacion/Sprint-0-Revision
Add index.markdown in order to show retrospective documents
Add showcase to documentation
Merge pull request #345 from andresmoschini/split-system-and-administrative-docs

Split system and administrative docs