added information for importing heroku postgres db into local dev. added dump files to gitignore
added comments to gitignore
added local development logic (local DB, local siteurl, gitignore db dump)

Conflicts:

	.gitignore
	wp-config.php
added heroku import/restore chapter
added s3 delete command to cleanup and remove db dump after restore
Moved a few README sections to wiki
Small fixes to readme.md
Merge branch 'master' into development

Conflicts:
	.gitignore