Reorganized/renamed chapter, created section for sharing data.
Created section for the Data addon.
Finished draft of documentation for sharing data.
Updated FAQ about sharing data between controller and binders.
Trying to fix broken reST.
Fixed an unclosed literal.
Fixing heading level for Getting Cookies section.
Merge branch 'develop' into docs_data_share
Explained that ac.data is serialized and can rehydrate the data on the page and also noted that binders or templates can be used, but you usually choose one and the better choice is using templates.
Added an example binder that listens for changes to pageData and mention that data is wrapped in this.page.
Merge branch 'develop' into docs_data_share
Merge pull request #1142 from zhouyaoji/docs_data_share

[doc] Added a section in the documentation for data in Mojito about sharing data among mojits, with the client, and accessing data from binders and templates.