This read a yaml file from a directory higher!

Very very useful for quickly changes/switching settings!
2 spaces indent :-)
Merge branch 'master' of github.com:zendesk/zendesk_apps_tools into olaf/yaml_settings
Added functionality for loading settings from json.
Merge branch 'master' into olaf/yaml_settings
Fixed a bug where the JSON was actually put in the settings as an object, but on the zendsek server that same string will be outputted as a string. To match output, please output the settings as a string if an Object or Array.
output json, not to string.

Only for hash and array. I need to work on my ruby :P
Merge branch 'olaf/multiple_apps' into olaf/yaml_settings

Conflicts:
	lib/zendesk_apps_tools/command.rb
Merge branch 'master' into olaf/yaml_settings
Removed the JSON config loader part.
Switch directory to {path}/config/settings.yaml
Merge branch 'master' into olaf/yaml_settings
No spaces after ( or before )
I extended the read_from_yaml function a bit to make it fail if you haven't specified a setting in your yaml file but it is required (and then is no default).
tests for get_settings_yaml
put fixture in spec/fixture insteaf of app_template
change path into path+filename
get settings from cwd.
added -c config option.
default to current working dir
me doing simple things complex, beacuse that's how i like it.
fixed var names into snake style.
added check to see if file exists.
on error nil, not {}