* Added uri property to Page model
* Added aliases collection
* Added routing form aliases
* Fixed redirect after page creation
* Added abiltity to support few pages with same title
* Added ability to change uri manually
* Changed hash function
* Changed uri parsing
* Removed pages controller promise
* Modified page's tests
* Added tests for alias model
* Added tests for aliases
* Escaping special characters
* Added missed files
* Fixed bugs related to translation
* Fixed parent page link
* Added server validation for uri
* Changed css properties order
* Made uri property of page be optional
* Prevented alias creation from empty uri
* Moved alias types to model
