Migrations documentation.
New test data.
Documentation on usage of MyMenu.
Merge pull request #326 from AlphaGit/documentation-migrations

Migrations documentation
Menu management documentation.
Graphs and some notes on them.
Conclusions on time dedicated to different tasks.
Merge pull request #328 from AlphaGit/documentation-my-menu

Documentation my menu
Fixed typo.
Rephrasing.
Merge pull request #330 from AlphaGit/time-graph-conclusions

Time graph conclusions
Merge branch 'master' into dates-on-deliveries

Conflicts:
	entregables/site/Docs/Manual-de-Usuario/Administracion-de-almuerzos.markdown
	entregables/site/Docs/Manual-de-Usuario/Administracion/Migraciones.markdown
Added links to administrative sections of the user manual.