modernizr is included by detectizr

Not including a separate version will prevent it from asking which
version to use
Features for version 0.5

* Improved support for other symfony distributions
* Alter AppKernel.php instead of replacing it
* Alter composer.json instead of replacing it
* Alter .gitignore instead of replacing it
* Download Composer if it isn't globally installed and use that
Update version number

Also include a Changelog and TODO
Update the PHP settings in the editorconfig
Removed the TODO list after adding the contents as issues
Merge pull request #12 from evolution7/features/0.5-functionalities

Features/0.5 functionalities