Update components.rst

Added: namespace App\Controller\Component; on component creation, this was missing in the documentation.
Without it it give a a error that a custom component is not found.
Updated getting-started/cakephp-conventions.rst
Updated Spanish translations for cakephp-folder-structure.rst and cakephp-structure.rst
Added missing config path in paths list
Minor misspelling
Update components.rst

Added new line after:  namespace App\Controller\Component; as requested
Merge pull request #1544 from peterhofman/patch-1

Update components.rst
Update docs for themes and data views.
Update console docs.

* Remove API doc style.
* Add sections.
* De-dupe contents.
Header corrections
Fixed table names
Merge pull request #1561 from elboletaire/3-0-spanish-translations

3.0 - "Getting Started" Spanish translations updated
Merge pull request #1564 from cakephp/3.0-proof-pt5

3.0 proof pt5
Improve plugin docs to clarify some points.

Try to address the confusion that came up in cakephp/cakephp#4188
Merge pull request #1568 from cakephp/plugin-clarification

Improve plugin docs to clarify some points.