add essence
Merge pull request #362 from xphere-forks/master

Add essence
Add Page component
Improve Page entity and add tests
First controller update
add Router and Routable
add Repository implementing RoutableRepository
add renderer to handleRequest

Conflicts:

	src/Elcodi/Component/Page/Services/Router.php
return one page only
add phpdocs

Conflicts:

	src/Elcodi/Component/Page/Services/Router.php
Added some component files
add interfaces to PageInterface
add id to PageEntity
bundle config and mapping