According to the README.md the extension requires PHPUnit 3.7.*, so
let's show it in the composer.json file. Also update
magento-composer-installer required version in order to make this
extension compatiable with other Magento extension installed via
composer.

Virtual File System, Custom Fixtures Path, New Yaml Loader, Custom Fixture Processors

fixed a undefined index bug

fix empty yaml loader model alias

move indexing out of transaction

+ Added new Configuration Controller Route assertion

+ Added @deprecated annotation to _getComplexLoader() method

app/code/design does not exist

Did the following...

cd ~/
modman clone git://github.com/IvanChepurnyi/EcomDev_PHPUnit.git
git checkout dev

cd /var/www/html/
modman link ~/EcomDev_PHPUnit/
 Applied: UnitTests.php                   UnitTests.php
 Applied: app/etc/modules/EcomDev_PHPUnit.xml  app/etc/modules/EcomDev_PHPUnit.xml
 Applied: app/code/community/EcomDev/PHPUnit  app/code/community/EcomDev/PHPUnit
 Applied: lib/EcomDev/PHPUnit             lib/EcomDev/PHPUnit
 Applied: lib/EcomDev/Utils               lib/EcomDev/Utils
 Applied: lib/Spyc                        lib/Spyc
Successfully create symlink new module 'EcomDev_PHPUnit'

phpunit
app/code/design does not exist

! Merge latest dev branch changes to refactor branch. Remove temporary attribute loader, for later refactor by another developer

Add composer.json