draft for explaining how to change persistence passphrase
new draft for change persistence passphrase doc
Fix typography
Detail better the device selection using Disk Utility
Use indefinite article
Complete the index on first_steps/persistence
Don't include warning on persistence

It's not meaningful on the pages about delete it and changing
the passphrase.
Remove title capitalization
Merge remote-tracking branch 'origin/master' into doc/change_persistence_passphrase

Conflicts:
	wiki/src/doc/first_steps.index.de.po
	wiki/src/doc/first_steps.index.es.po
	wiki/src/doc/first_steps.index.fr.po
	wiki/src/doc/first_steps.index.mdwn
	wiki/src/doc/first_steps.index.pt.po
	wiki/src/doc/first_steps/installation.es.po
	wiki/src/doc/first_steps/installation/manual.es.po
	wiki/src/doc/first_steps/persistence.es.po
	wiki/src/doc/first_steps/persistence/configure.es.po
	wiki/src/doc/first_steps/persistence/delete.es.po
	wiki/src/doc/first_steps/persistence/use.es.po
	wiki/src/doc/first_steps/persistence/warnings.es.po
	wiki/src/doc/first_steps/reset.es.po
	wiki/src/doc/first_steps/startup_options.es.po
	wiki/src/doc/first_steps/startup_options/bridge_mode.es.po
	wiki/src/doc/first_steps/startup_options/windows_camouflage.es.po
	wiki/src/doc/first_steps/upgrade.de.po
	wiki/src/doc/first_steps/upgrade.es.po
	wiki/src/doc/first_steps/upgrade.fr.po
Reorder the persistence index

- Put "delete" at the end
- Move "change_passphrase" before "copy"
Merge remote-tracking branch 'origin/master' into doc/change_persistence_passphrase
updated PO files