moved manifest file creation grunt task to samples directory
modified samples to use new appcache names
tweaked code comments in grunt file
added appcache files to samples dir
Updated main readme to include grunt-manifest
added a readme for grunt-manifest licensing info
removed old manifest files and grunt task
Merge pull request #178 from andygup/restructure_manifest

Restructure manifest files
removed unused png file
Merge pull request #179 from andygup/remove_image

removed unused png file
Pulled dependencies out of readme.md and moved to doc dir
a few more tweaks to wording
Merge pull request #180 from andygup/dependencies_doc

Step 1 to cleaning up the doc
moved offlineFeaturesManager and offlineTilesEnabler docs to separate files
moved how to use docs
fixed some old verbiage in readme
Merge pull request #181 from andygup/move_class_docs

Break API doc into chunks