basic caching. caches everything and never tries again if there is cache
#9 added filtering to instagram api so that only images are selected - not videos
add unit tests for standalone ig api methods & fix sorting of posts
#10 removing debug
add default config
#7 put code in folders as specified and renamed instagramApi test
#7 make use of mocha --recursive flag instead of manual search
#19 add many tests and #22 map ghost posts to their instagram ids
#12 add filtering and test for images that have not yet been posted
#11 downloads posts that are not yet on ghost
Merge pull request #23 from andystanton/cache-igposts

Cache igposts