Added enviromental variable tip for debug and deployment
Merge branch 'master' of https://github.com/cakephp/docs into deployment-tip
Removed the tip, slightly reworded, and added an example
[fr] Follow #763

remove wrong sentence
correct bool to boolean
Merge pull request #766 from cakephp/master-fixes

correct bool to boolean
Changed enviromental to enviromental
[ja] follow up #631, #728, #738, #739, de18381, 553f148, f8e3768
[ja] follow up #766
[ja] follow up #763
[ja] follow up #759
don't advocate string urls
Merge pull request #771 from dereuromark/master-form

don't advocate string urls
Add note about requiring more than just an id field.
[fr] Follow #766

correct bool to boolean
[fr] Follow #771

don't advocate string urls
[fr] Follow 4d756fdb83cf69b637bcb9ebeadccc455d55be26

Add note about requiring more than just an id field.
[fr] correct small grammar and spelling issues
Changed Library to Libraries for grammer.
Changed 'Convenience' to 'Convenient' for grammer.