Changed CFStringEncodings (incorrect type) to CFStringEncoding (correct type).
Fixed to report US-ASCII encoding when it is pure ascii instead of reporting nothing.
Refactored indentation levels.
Updated .gitignore with better patterns
Updating read me. Updating Podspec to include .tab files as resources to silence compiler warnings.
Merge pull request #2 from mophie/master

Returning ASCII encoding when ASCII is detected, fixed some incorrect types being used, and included Podspec workaround for silencing warnings about .tab files.