clean up a bit

http://www.craftitonline.com/2013/10/ignore-symfony2-phpstorm-files-like-a-pro-with-global-ignoring/
update name to sdk
Merge pull request #3 from cordoval/patch-1

Cleaning up .git-ignore for unnecessary references
Update composer.json
Merge pull request #6 from cordoval/patch-3

[RFC] fix PR to set composer name of package right according to composer
Fixed psr-0 fixes by running php-cs-fixer