Merge pull request #46 from kgrigsby59/master

added shouldShowPart
Fixed attachments query
add the ability in the iOS demo to change the hostname
Added license. Added TODO
implement the ability to load cid and x-mailcore-images in the iOS demo
Removed libjson submodule
remove extra logging, switch to MCLog for remaining logs
prefix private method, conform to coding conventions
remove unnecessary code
check to ensure the part isn't nil before attempting to load
spaces -> tabs
don't fetch the message twice
factor out code to handle case where we've already fetched the iamge
encode javascript function parameters as json
conform to formatting conventions
missed a line
Merge pull request #47 from MailCore/cid-images

Implement the ability to load cid and x-mailcore-images in the iOS demo
Fixed exception
Avoid fetching attachment when the full message has already been fetched
Don't encode JSON dictionary into a string