add new Region eunm type to describe region endpoints
the method that retrieves summoners by their name now take a Region object instead of String for the region
the method that retrieves summoners by their name now take a Region object instead of String for the region
Merge branch 'create-regions' of github.com:aurelman/lol-client-api into create-regions
Merge pull request #2 from aurelman/create-regions

Create regions to handle possibly different endpoints.