add ja/models/datasources.rst
[zh_CN] done /zh/models/transactions.rst
Merge branch 'master' into zh
Merge pull request #1974 from blackpuppy/zh

[zh_CN] done /zh/models/transactions.rst
add french translation for plugin installation
fix build warning
typo pouvez
Better docs for updated 2.5.6 isUnique

Added text to the isUnique docs to describe how the validation behaves when a specified field isn't included in the model data
Merge pull request #1980 from cakephp/fr_plugins

[fr] how to install plugins
Merge pull request #1981 from watermark/patch-1

Better docs for updated 2.5.6 isUnique
Typo in documentation

Missed one letter ;)
Merge pull request #1982 from trajakovic/patch-1

Typo in documentation for Hash utility
Merge pull request #1972 from hotta/add_DataSources

add ja/models/datasources.rst
fr typos
Update documentation.rst

Fixed a couple of commas and minimalized a sentence in order to test this system.
Merge pull request #1992 from ashleybrown415/patch-1

Update documentation.rst
follow #1981
Correct a translation issue
Improve translation
Merge pull request #2001 from rbecheras/patch-12

Improve translation