service reworked to check header for last-modified on the feed resource
fix warning from initializing ImageLoader too many times
change package name
add external cache permission
cleanup
add image table back in
track XmlCheckAgeTask
don't download image data into images table since we don't use it
remove async tasks usage from intentservice
Merge branch 'autorefresh' of github.com:GrinnellAppDev/SandB-Android