Merge pull request #15 from oerpub/phil-save-new-content

saving new content no longer keeps the new content in unsaved changes
Merge pull request #16 from oerpub/phil-state-icons

Add icons in the ToC, picker, and workspace to show the dirty/remotely-updated state of content
Add confirmation dialog when XhtmlFile is changed locally and remotely
Merge pull request #18 from oerpub/phil-confirm-remote-updated

Phil confirm remote updated
Use master branch
Book shows unsaved icon

and maybe the remotely-updated icon
Disable save button when saving
remove some crufty styles from oerpub-content.less
Merge branch 'master' of github.com:oerpub/github-book
update the lastSeenSha when commit completes
remove Model.blobSha because remoteUpdater will not call reload models

because of something locally committed
pass options when implicitly calling removeChild
clean up some of the set() methods
refactor to introduce a "SmartCompositeView"
add ToC autosave
Merge pull request #20 from oerpub/phil-save-split

Add ToC autosave and do not refetch files after save
make moving things within a chapter in toc save properly
Merge pull request #21 from oerpub/56706694

make moving things within a chapter in toc save properly
Removed change from the set of events to listen to
Clicking on the heading no longer reloads the page.