fix dirty checks for selected modules
prevent current module from being highlighted in picker

Thanks to Tom for figuring out toc-branch.html logic for me :thumbsup:
Merge pull request #66 from oerpub/58472046

fix dirty checks for selected modules
Merge pull request #67 from oerpub/58471910-picker-module-not-selected

prevent current module from being highlighted in picker
Merge remote-tracking branch 'origin/master' into 57577828
make epub container not dirty on load