read and apply charset from Content-Type to geocoder raw response, if possible.
Merge pull request #628 from jzelenkov/fix-postresql-oid

fixes postgres "unknown OID" warnings
batch size in rake task for large database
add to readme
Merge pull request #632 from fishbullet/task_for_large_db

Batch size in rake task for large database
Clean up language.
Merge branch 'master' of git://github.com/Vayable/geocoder into pr/385

Conflicts:
	lib/geocoder/lookups/base.rb
Add note about character encoding support.
Add note about Rails 4.1 and ActiveRecord `count`.
Put methods in module to prevent naming collisions.
Add note about :maxmind_local with SQL DB.
Revert "Merge pull request #628 from jzelenkov/fix-postresql-oid"

This reverts commit 2a29613acda2468e23056921cc257252d2128ea8, reversing
changes made to c5c459409db3163cd2d4670506c3c7575ae9af22.
Prepare for release of gem version 1.2.0.
[2nd try] fixes postgres "unknown OID" warnings