Developer environment bootstrapper

- reads API id and secret from .properties file on disk

- provisions an Application and one or more Directories

- writes out the stormpath.yml file to pwd
Adding a console runner

- user can specify location of their .properties file

- user must specify an application name and at least one directory name
Allow for passing output (config) file location
Use application's name as default for directory
Update README.md
Provide access to the stormpath_bootstrap script
Correct gemspec and README
Merge pull request #12 from stormpath/enhancements/config_file_generation-2

Enhancements/config file generation 2