Merge pull request #8 from caruccio/master

Some HTTP sugar and fixes
Fix parametter init_git_url in app_create_scale
Merge pull request #9 from berlotto/fix_init_git_url

Fix parametter init_git_url in app_create_scale
Update README
simplified requests code
Merge pull request #10 from mdawar/master

Simplified requests code
delete/list all user domains