Database abstraction broken up into controller, connector, query builder, and schema manager, each independently configurable via YAML / Injector
Creation of new DBQueryGenerator for database specific generation of SQL
Support for parameterised queries, move of code base to use these over escaped conditions
Refactor of SQLQuery into separate query classes for each of INSERT UPDATE DELETE and SELECT
Support for PDO
Installation process upgraded to use new ORM
SS_DatabaseException created to handle database errors, maintaining details of raw sql and parameter details for user code designed interested in that data.
Renamed DB static methods to conform correctly to naming conventions (e.g. DB::getConn -> DB::get_conn)
3.2 upgrade docs
Performance Optimisation and simplification of code to use more concise API
API Ability for database adapters to register extensions to ConfigureFromEnv.php
Changed Fragment links to Anchor links, however it's is slighty confusing what the right name for the thing is.
According to w3.org: "Some URIs refer to a location within a resource. This kind of URI ends with "#" followed by an anchor identifier (called the fragment identifier)." - http://www.w3.org/TR/html401/intro/intro.html#fragment-uri
After doing some research in the most common used name for the #some-link identifier I came to the conclusion that most of the time (about 70% on StackOverflow/BlogArticles/Interwebz) Anchor-link was the term used to describe the identifier. Imho, Anchor is the prefered term for the identifier.
Is it acceptable to change fragment to anchor, since it seems more used?
Corrected many broken link-renderings. Also removed the "Related" link to [genericviews Module](http://silverstripe.org/generic-views-module) because it doesn't work, and I can't it elswhere.
CustomMember was extending the wrong class to be able to reference $this->owner.
Also, changed CustomMember to MyMemberExtension to remain consistent with the initial example.
BUG Resolve issue with DirectorTest breaking RequestProcessor
Injector::nest and Injector::unnest are introduced to better support sandboxing of testings.
Injector and Config ::nest and ::unnest support chaining
Test cases for both Injector::nest and Config::nest
Removed ; at the end of ->setConfig('dmyfields', true) in the three chain example. Is confusing for new users/developers who are not aware of how to chain methods.
Closes#3006
