Started a Queriable trait that can be shared by all db entities:
- getById works
- findAll works
- various helper methods work
Added an Update method to packages model.
Updates working in a slightly better way now.
Cleaned up a bit, added some notes.
Added some name to id and id to name mapping traits.
Merge branch 'entityTraits'

Conflicts:
	app/models/Packages.scala
	app/models/Tasks.scala
	app/models/Users.scala
Merged Queriable traits into master branch:
- Users and Tasks now with Queriable.
- Modified and commented Queriable helpers to work with tasks and users.
Merge pull request #14 from FranciscoCanas/master

Queriable Trait