Updated config directory to correct location in examples.
* other line changes are whitespace trims (auto by ide)
Updated readme with runnable examples
Enable the override of the default attributes
Ugly fix: SQLite addQuotes is wrongly done, hence copy the code from postgres & mysql dialect query generator
Merge pull request #574 from Runnable/master

Provide a link to a live sandbox environment where sequelizse examples are available
Merge pull request #635 from sevastos/override-default-attributes

Enable the override of the default attributes
overriding default columns
Merge pull request #636 from mweibel/fix-sqlite-addquotes

SQLite addQuotes is not correct
evil space