Merge pull request #43 from anthonator/master

Fixed issue causing infinite loop when adding monetize to model
Fixed error when demongoize is called with an argument other than a hash.
Merge pull request #47 from hosamaly/fix-demongoize-nonhash

Fixed error when demongoize is called with an argument other than a hash
Treat money-rails as an Rails Engine
Exhibits validation failures when mass assigning
Made validator more lenient with currency formats
Merge pull request #48 from danbeaulieu
Add some comments and refine presentation
Add some specs for money validator
Fix error when the keys are not symbolized in mongoid
Edit mongoid3 demongoize test
Allow immediate subclasses to inherit monetized_attributes
Merge pull request #53 from polimorfico/master

Error with symbolized keys in mongoid 3
Depend on last stable version of money
Use travis CI only with ruby 1.9.x targets
Merge pull request #54 from garrettlancaster/inheritance

Allow immediate subclasses to inherit monetized_attributes
Use 'to_money' when it is possible (form fix)
Merge pull request #55 from TMWH/master

Mongoid: Form fix
Update contributors file
Update supported ruby versions in README