Fix bug when setting a date field with undefined value
Merge pull request #1881 from mohlman3/bugfix/undefined_set_date

Fix bug when setting a date field with undefined value
Bug fix - corrected detection of relative paths in import function.

Original check was using "path.sep" (which is undefined) instead of "Path.sep".  Also, the check failed to catch absolute paths in Windows when the path starts with a drive letter (ex. "C:\folder\file.js").
Merge pull request #1885 from sarme/master

Bug fix - corrected detection of relative paths in import function.
Support for virtual attributes and added back the docs gen
Allow field names to be same as property name
Add test for bugfix
Merge pull request #1888 from mohlman3/bugfix/field_mapping_same_name

Allow field names to be same as property name
Merge pull request #1887 from sequelize/virtualAttr

Support for virtual attributes
Changelog: Sequelize.VIRTUAL
Changed dao -> model a couple of places, updated bluebird and pointed package.json at a specific sequelize bluebird commit