[3.0] [pt] Create topics.rst
Copying en documentation and replacing pt folders and files that remains from milestone 2.*.
Merge pull request #1819 from andtxr/patch-files

[3.0] [pt] Refreshing portuguese structure
Merge pull request #1814 from andtxr/patch-13

[3.0] [pt] Create topics.rst
[3.0] [pt] Delete getting-started.rst

Remains of 2.* milestone.
Merge pull request #1820 from andtxr/patch-1

[3.0] [pt] Delete getting-started.rst
Re-add tutorials & examples to the TOC.
Merge pull request #1821 from cakephp/add-tutorials

Re-add tutorials & examples to the TOC.