Update docs for Shell folder location.
migration note
Fix typo
Correct wording
remove exception.rst
Updated spanish translations

Added notes on every non-translated doc page (Spanish translations)

Removed old `advanced-installation.rst` + unnecessary `empty` file

Added full English copies for currently non-existent Spanish translations

Added files from root folder missing on commit fc277d611370c096deefa6d3e7929b4088bf7d6d

Updated es/contents.rst according to current version
Merge remote-tracking branch 'docs/3.0' into spanish-translation-notes

Conflicts:
	es/index.rst
Merge pull request #1652 from antograssiot/3.0

3.0 remove exception.rst
Removed $ from console commands for consistency
Merge pull request #1655 from spiliot/3.0-tutblog

Blog tutorial: Removed $ from console commands for consistency
Merge pull request #1653 from rvegas/patch-2

General rewording/relinking of Installation in ES
Merge remote-tracking branch 'docs/3.0' into spanish-translation-notes

Fixed Conflicts:
	es/installation.rst
Merge pull request #1639 from elboletaire/spanish-translation-notes

3.0 Updated cakephp overview + added notes on every non-translated page (spanish translations)
Update collections.rst

Typo
Merge pull request #1657 from luke83/patch-3

Update collections.rst
Fix eg. code.
use ``true``/``false``
Merge pull request #1658 from antograssiot/3.0

3.0 use ``true``/``false``
Update routing.rst
Merge pull request #1662 from vttn/patch-2

Update routing.rst