Merge pull request #1 from bryansills/master

.gitignore changes to not add IntelliJ files
Added ap-name, button_find_me, edit_ZIP, and welcome to strings.xml. Added ZIP EditText
Added Geocoder locality functionality and linked EditText in MainActivity to Result Activity
Started week-4.mkd, added Log output for Geocoder IOException
Clarified week-4.mkd, refactored hardcoded strings, and adjusted language from ZIP to generalized location
Merge pull request #4 from dgreenhalgh/master

Week 4 lecture