Add section for prepared statements.
Add more sections to database docs.
Add notes about new ORM to migration guide.
Finish off database-basics section.
Start table object + entity docs.
Added info about Session's namespace change.
Merge pull request #892 from ADmad/3.0-session

Added info about Session's namespace change.
Clean up 3.0 migration guide
Merge pull request #893 from bcrowe/hotfix-3.0migrationClean

3.0 - Clean up 3.0 migration guide
Merge pull request #888 from ADmad/3.0

Added info about new Request::env() method.
Deprecated constant DEFAULT_LANGUAGE removal info.
Add Time and TimeHelper notes to 3.0 migration guide
Merge pull request #894 from bcrowe/hotfix-migration

3.0 - Add Time and TimeHelper notes to 3.0 migration guide
Use methods instead of properties.

Add a section about the TableRegistry as well.
Update language in migration guide.
Corrections based on feedback.
More corrections from review feedback.
Merge pull request #891 from cakephp/3.0-database-docs-pt2

3.0 Database docs pt2
Added info about authentication related updates in 3.0.
Merge pull request #898 from ADmad/3.0-auth-blowfish

Added info about authentication related updates in 3.0.